JP3226219U - Air cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air purifier having a deodorizing filter having a simple structure and easy to replace, being lightweight, easy to use and inexpensive to manufacture. A body (2) having an air inlet (21) and an air outlet (22), a dust collecting filter (3) for removing dust of air sucked from the air inlet of the body, and a deodorizing filter (4) for deodorizing air passing through the dust collecting filter. An air purifier in which a blower 6 for sucking air from the suction port of the main body and flowing out the air from the blowout port of the main body is housed in the main body, and the dust collecting filter is a support frame 32 attached to the suction port of the main body. The deodorizing filter comprises a non-woven bag 42 formed by adhering the peripheral portions of two non-woven fabrics and enclosing granular cypress charcoal 41, and is also a dust collecting filter. It is housed in a cage-like case 5 arranged between the blowers, and the blower is arranged between the cage-like case and the air outlet of the main body. [Selection diagram] Figure 1

Description

  The present invention relates to an air purifier that sucks indoor air to collect dust and deodorize odors.

  Conventionally, air purifiers have been used to deodorize dust and bad odors in indoor spaces. An air purifier is usually equipped with a dust collecting filter for collecting dust and a deodorizing filter for deodorizing a bad odor, and an adsorbent such as activated carbon is used for the deodorizing filter.

  Patent Document 1 discloses an invention of an air purifier equipped with a deodorizing filter for removing gas components, a dust collecting filter for removing dust, and an air blower for supplying air to the filter. For the deodorizing filter, a granular adsorbent and a granular thermoplastic resin are added to a binder and mixed, and a plate-shaped molded body formed by heating and heating is used to form ventilation holes, thereby achieving both deodorizing efficiency and low pressure loss. There is.

  As can be seen from the description in Patent Document 1, a conventional deodorizing filter for an air purifier has a complicated structure and many production processes, and an air purifier using the above deodorizing filter is expensive. I have no choice. Moreover, it was not considered to be easy to use because no consideration was given to easy replacement of the deodorizing filter.

      Patent Document 1: Japanese Unexamined Patent Publication No. 2010-63524

  The present invention has been made in view of the problems that the conventional air cleaner has, and has a deodorizing filter that has a simple structure and is easy to replace, and is lightweight, convenient and inexpensive to manufacture. The purpose is to provide a purifier.

In order to solve the above problems, the present invention adopts the following means.
[1] From a main body having an air inlet and an air outlet, a dust collecting filter that removes dust in the air sucked from the air inlet of the main body, a deodorizing filter that deodorizes air that has passed through the dust collecting filter, and a main body inlet An air purifier in which a blower for sucking air and causing the air to flow out from the blowout port of the main body is housed in the main body, and the dust collecting filter is made of a non-woven fabric supported by a support frame attached to the suction opening of the main body, The deodorizing filter consists of a non-woven bag made by adhering the peripheral parts of two non-woven fabrics and enclosing granular cypress charcoal in a basket-like case placed between the dust collecting filter and the blower. An air purifier that is housed and the blower is arranged between the basket-like case and the outlet of the main body.
[2] A space of 20 mm to 40 mm is provided between the basket-like case and the blower to form a space, and an area surrounded by an outer edge of the deodorizing filter is smaller than an inner area surrounded by a frame portion of the basket-like case. Thus, in addition to the air flow passing through the non-woven bag of the deodorizing filter, an air flow passing between the outer edge of the deodorizing filter and the frame member of the basket-like case is formed [1 ] The air purifier described in.
[3] The air purifier according to [1] or [2], wherein the granular cypress charcoal is granular having an average length of 1 to 10 mm.
[4] The air cleaner according to any one of [1] to [3], wherein two nonwoven fabrics constituting the nonwoven fabric bag are bonded at their central portions.
[5] The air purifier according to any one of [1] to [3], wherein the deodorizing filter is formed by connecting a plurality of granular cypress charcoal sealed in the non-woven bag. .
[6] When the air purifier is placed on the floor of the room with the dust filter side down, a plurality of legs capable of maintaining a space between the floor and the body form the suction port of the body. The air cleaner according to any one of [1] to [5], which is characterized in that it is provided at four corners of a frame portion.
[7] The air cleaner according to any one of [1] to [6], wherein a handle is attached to the main body.

  Since the air purifier of the present invention uses a non-woven bag made by adhering the peripheral portions of two non-woven fabrics, in which granular cypress charcoal with excellent deodorizing performance is put, is used as the deodorizing filter. However, it is not complicated, is lightweight, and can be manufactured at low cost. Further, since the air purifier of the present invention stores the non-woven bag as a deodorizing filter in the basket-like case and stores it in the main body, the basket-like case can be put in and taken out from the main body. Can be easily replaced.

1 shows a cross-sectional view of an embodiment of the air cleaner of the present invention. The front view (a) seen from the blower side of the embodiment of the air cleaner of this invention, an external perspective view (b), and the perspective view (c) seen from the dust collection filter side are shown. 1 shows an embodiment of a dust collecting filter. 1 shows an embodiment of a deodorizing filter and a basket-shaped case. The deodorizing performance of three types of charcoal is shown. The cross-sectional enlarged view of three types of charcoal by an electron microscope is shown. FIG. 3 shows a perspective view of an embodiment of an air purifier with legs attached. FIG. 3 shows a perspective view of an embodiment of an air purifier with a handle attached to the body.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The air cleaner of the present invention comprises a main body, a dust collecting filter, a deodorizing filter, a basket-like case and a blower housed in the main body.
A sectional view of the air cleaner of the present invention is shown in FIG.
Here, 1 is an air cleaner, 2 is a main body, 3 is a dust collecting filter, 4 is a deodorizing filter, 5 is a basket-like case, and 6 is a blower. Reference numerals 21 and 22 are a suction port and a blowout port into which air flows when the fan of the blower 6 rotates.
2A and 2B are a front view and a perspective view of the air purifier 1 as seen from the side of the blower 6, and a perspective view of the air purifier 1 as seen from the side of the dust collecting filter 3 is shown in FIG. It is shown in c).
Hereinafter, the members of each part constituting the air cleaner will be described.

The main body 2 is a frame body in which a space having a rectangular cross section is formed, which serves as a ventilation passage, and has an air inlet 21 and an air outlet 22 at both ends thereof. The dust collecting filter 3, the deodorizing filter 4, the basket-like case 5, and the blower 6 are arranged between the suction port 21 and the air outlet 22 in the space of the main body 2. The deodorizing filter 4 is housed in a basket-shaped case 5.
When the fan of the blower 6 rotates, air is sucked in through the suction port 21, passes through the basket-shaped case 5 in which the dust collecting filter 3 and the deodorizing filter 4 are housed, and flows out from the air outlet 22 behind the blower 6. Arrows A and P indicate the flow of air.

The dust collecting filter 3 includes a non-woven fabric 31 and a support frame 32 to which the non-woven fabric 31 is attached.
In FIG. 3, the support frame 32 is composed of a frame member 321 and a cross member 322 installed on the frame member 321, and the frame member 321 is sized to fit into the suction port 21 of the main body. . The cross member 322 is provided between the opposing frame members 321 to support the non-woven fabric 31 and not prevent the passage of air. Here, the support frame 31 having eight horizontal crosspiece members 322 and one vertical crosspiece member 322 is shown.
To attach the dust collecting filter 3 to the main body 2, for example, as shown in FIG. 1, a protrusion 23 is provided on the inner surface of the main body 2 in the vicinity of the suction port 21, and the support frame 32 is directed from the suction port 21 to the air outlet 22. The dust collecting filter 3 can be fitted in and attached to the main body 2 by pushing it toward and receiving the support frame 32 by the projection 23.

The non-woven fabric 31 has an area enough to cover a portion surrounded by the outer edge of the frame member 321 of the support frame 32.
The non-woven fabric 31 may be attached to the support frame 32 by attaching a double-sided tape to the edge of the non-woven fabric, but the non-woven fabric 31 is pressed against the support frame 32 fitted in the main body 2 and then the suction port 21 of the main body 2 is pressed from above. It is also possible to attach it to the support frame 32 by pressing the press frame 33, which is made to have a size to be fitted into the support frame 32, against the edge of the non-woven fabric 31 and fitting it.

  When the fan of the blower 6 rotates and the air in the room flows in through the suction port 21 of the main body 2, the non-woven fabric 31 of the dust collecting filter 3 collects dust and dust. If the collected dust or dust accumulates on the non-woven fabric 31 and air suction is greatly impaired, it needs to be replaced. The replacement of the non-woven fabric 31 can be easily performed by taking out the non-woven fabric 31 from the dust collecting filter 3 removed from the main body 2.

The removal of the dust collecting filter 3 from the main body 2 is supported by pulling out the support frame 32 from the main body 2 in the direction from the blowout port 22 to the suction port 21 regardless of whether the double-sided tape is used or the pressing frame 33 is used. It can be easily performed after taking out the frame 32 from the main body 2. By forming a tab (not shown) serving as a knob on the support frame 32 and pulling the tab, the support frame 32 to which the nonwoven fabric 31 is attached can be easily taken out from the main body 2.
To remove the dust collecting filter 3 from the main body 2, the support frame 32 is moved in the direction from the blowout port 22 to the suction port 21 by a hand inserted through a gap (which will be described later) formed in the ceiling portion of the main body 2. It can also be done easily by pushing.

The deodorizing filter 4 is composed of a non-woven bag 42 in which granular cypress charcoal 41 is enclosed, and is housed in the basket-like case 5. It is desirable that the basket-shaped case 5 has a size such that the rectangular ventilation passage section of the main body 2 fits close to the inner wall surface of the main body.
The basket-like case 5 in which the deodorizing filter 4 is housed is arranged between the dust collecting filter 3 and the blower 6, and the room air after the dust collecting filter 3 has collected dust and dust is in the basket-like case 42. And is deodorized by a deodorizing filter (nonwoven fabric bag in which granular cypress charcoal is enclosed) 4.

  The deodorizing filter 4 is formed by stacking two rectangular non-woven fabrics having the same shape, adhering the peripheral edge portion except for the opening portion, and then inserting the granular cypress charcoal from the opening portion and then adhering the opening portion to close it. It can be manufactured. Furthermore, if the central portions of the two non-woven fabrics forming the non-woven bag 42 are also adhered, the granular charcoal can be put in a donut shape, and the granular charcoal can be more evenly dispersed in the non-woven bag 42. You can

  The deodorization filter 4 may be a single (one) non-woven bag 42 in which the granular cypress charcoal 41 is enclosed, or a plurality of non-woven bags 42 in which the granular cypress charcoal 41 is enclosed. Good. In the latter case, it is desirable that a plurality of edge portions of the non-woven bag 42 are connected to each other. When the deodorizing filter 4 is composed of a plurality of non-woven fabric bags 42 arranged side by side, compared to the deodorizing filter 4 consisting of a single non-woven fabric bag, the deviation of the granular cypress charcoal in the non-woven fabric bag due to gravity is more likely to occur. Can be made smaller. When the deodorizing filter 4 is formed by connecting two or more non-woven bags, when the deodorizing filter 4 is housed in the basket-shaped case 5 and stored in the main body 2, the deodorizing filter 4 is connected so that all the connecting portions are horizontal. Is desirable.

As the non-woven fabric, it is desirable to use a non-woven fabric having a characteristic that fine powder charcoal does not leak while maintaining air permeability. Non-woven fabrics made of synthetic resin having such characteristics and capable of being bonded by thermocompression bonding are commercially available.
When the non-woven bag 42 of the deodorizing filter 4 has a size of 190 mm × 190 mm × 25 mm, about 50 g of granular cypress charcoal can be added.

  The basket-like case 5 can accommodate the deodorizing filter 4 without hindering the passage of air. However, in the case shown in FIG. 4, the case member is composed of a pair of case members 51 and 52 and forms a pair. 51 and 52 are joined by a hinge mechanism so that they can be opened at both sides. When the case members 51 and 52 forming a pair of double-sided doors are closed together, the deodorizing filter 4 can be housed inside. To store the deodorizing filter 4 in the basket-like case 5, after placing the deodorizing filter 4 on one case member 52 (51) of the basket-like case 5 in the double-opened state, the other case member 51 (52) is placed. The hinge may be rotated about its axis, and the hinge may be closed according to the case member 52 (51).

The case members 51 and 52 forming a pair shown in FIG. 4 are provided with four frame members forming four rectangular enclosures, and the crosspiece members are installed between the frame members facing each other. A non-woven bag 4 containing cypress charcoal) 4 is sandwiched so as not to fall out of the basket-like case 5 and the inflow of air is not hindered. FIG. 4 shows a case member having nine vertical crosspiece members and one horizontal crosspiece member.
It should be noted that the case members 51, 52 are provided with short horizontal crosspieces (not shown), though they are not essential. This functions as a knob when opening the basket-like case 5.

  The basket-like case 5 does not consist of the case members 51 and 52 forming a pair as shown in FIG. 4, but can also be manufactured as an integral body. For example, like a bookcase, which has a rectangular parallelepiped shape, except for one of the six surfaces forming the rectangular parallelepiped, the deodorizing filter 4 is used as an insertion port, and a pair of facing side surfaces perpendicular to the flow of air. It may be formed into a cage by forming a gap through which air passes.

In order to store the basket-shaped case 5 in which the deodorizing filter 4 is housed in the main body 2, it can be inserted through a gap formed in the ceiling portion of the main body 2. After the insertion, the gap may be closed with the lid 26.
Also in this case, in order to prevent the inserted cage-shaped case 5 from being displaced and not being stored in a predetermined place of the main body 2, a protrusion 24 is provided on the inner surface of the main body 2 to prevent the cage-shaped case 5 from being blown out. The edges can be supported.
The basket-like case 5 can be housed in a predetermined place of the main body 2 by inserting it between the projection 23 supporting the support frame 32 of the dust collecting filter 3 and the above-mentioned projection 24 in the main body 2.

  Like the cassette case, the basket-like case 5 can be easily stored in the main body 2 or taken out from the main body 2. If a tab (not shown) serving as a knob is formed on the upper surface of the basket-shaped case 5 located immediately below the lid 26 when stored in the body 2, it is easy to take out the basket-shaped case 5 from the body 2.

  When the basket-like case 5 is taken out from the main body 2 and is composed of case members 51 and 52 forming a pair, the case 5 is opened, and when the case is one, it is stored from the insertion port of the deodorizing filter 4. It is also easy to take out the deodorizing filter 4 and replace it. If a tab (not shown) is attached to the non-woven bag 42 of the deodorizing filter 4, the deodorizing filter 4 can be easily replaced.

The blower 6 is provided with a mounting frame 7 for mounting to the main body 2, and as shown in FIG. 1, the blower 6 is arranged and mounted between the basket-shaped case 4 containing the deodorizing filter 41 and the air outlet 22 of the main body 2. Has been.
When the fan of the blower 6 rotates, the air in the room sucked from the suction port 21 of the main body passes through the basket-shaped case 5 in which the dust collecting filter 3 and the deodorizing filter 4 are housed and flows out from the air outlet 22 of the main body 2. ..

The blower 6 includes a fan (blades) and a motor to which the fan is attached. The attachment frame 7 is fixed to the motor and is attached to the main body 2 via the attachment frame 7.
The blower 6 can be inserted from the air outlet 22 of the main body 2, and the corresponding portions of the mounting frame can be fixed to the main body 2 by projection screws or the like on the protrusions 25 formed at a plurality of locations in the main body 2. Alternatively, a gap may be formed in the ceiling portion of the main body 2, and the blower 6 attached to the mounting frame may be inserted from this gap and housed in the main body 2 and fixed.

  A panel 8 is attached to the air outlet 22 of the main body 2. A large number of gaps (ventilation holes) are formed in the panel 8 so as not to hinder the blowing of the air blower 6. By mounting the panel 8, it is possible to prevent a person from touching the fan of the blower 6. The panel 8 is not necessary when the blower 6 itself is provided with a protective cover like the fan, but may be provided together with the protective cover for decoration.

Although not shown, a power circuit board connected to the motor by a lead wire is attached to the inner surface of the main body 2, and the switch button of the operation unit 9 provided on the outer side surface of the main body 2 causes the blower 6 to move. The rotation of the fan can be controlled. The operation unit 9 can be provided with a switch button for turning the fan on and off, a switch button for switching the air volume mode, a switch button for selecting the timer time, and the like.
The power of the motor of the blower 6 can be obtained by inserting a plug into an indoor outlet through a cord, and a USB power adapter may be used. In addition, the battery housed in any of the empty spaces in the main body 2 can be used as a power source to rotate the fan of the blower 6 in a cordless manner. You can also allow the battery to be charged with a mobile battery.

Next, the deodorizing performance of cypress will be described.
FIG. 5 shows how the concentration of 4000 ppm of ammonia gas enclosed in a 12.3 liter desiccator of cypress, bamboo and kunugi charcoal decays with time.
As can be seen from this figure, in the cypress charcoal, the ammonia concentration suddenly declined to about 160 ppm after 1 hour and to about 30 ppm after 3 hours, while there was almost no ammonia odor. With Kunugi charcoal (bamboo charcoal), it was about 960 (1400) ppm after 1 hour and about 660 (1010) ppm after 3 hours.
As described above, it is understood that the cypress charcoal can deodorize ammonia gas in a shorter period of time than the charcoal of kunugi or bamboo, and has an excellent deodorizing power.

6 (a) to 6 (c) show enlarged cross-sectional photographs of cypress, kunugi and bamboo charcoal fired in the same kiln with an electron microscope.
Unlike other charcoal, cypress charcoal has a uniform honeycomb structure (porous), and this uniform structure has a remarkably large surface area compared to other charcoals and rapidly absorbs gas of odorous components. It is believed that this is the reason why it has a much higher deodorizing speed than other charcoals.

Although fine cypress cypress charcoal has a larger deodorizing ability than granular cypress charcoal, it quickly agglomerates under the influence of humidity, and its deodorizing ability sharply decreases over time and does not continue. If fine powdered charcoal is used in the operation of filling the non-woven bag with charcoal, it is easily affected by static electricity and becomes difficult to handle.
For this reason, the charcoal packed in the non-woven bag is granular. However, if the granular charcoal is too large, the gap between the charcoal and the charcoal becomes too wide and the deodorizing performance deteriorates. Therefore, the length of the granular charcoal is 1 mm. It is preferably within the range of 10 mm. Here, the length of the granular charcoal refers to the longest length of the granular charcoal.
Granular charcoal can be produced by crushing cypress wood charcoal fired in a kiln, removing fine powder with a sieve or the like, and selecting granular charcoal.
It is unavoidable that fine powder is generated during the work of putting granular charcoal into the non-woven bag, but even if a small amount of fine powder is mixed into the non-woven bag, the deodorizing performance does not change significantly.

Hinoki charcoal can exert an excellent deodorizing ability against alkaline odors such as ammonia gas, but also against acidic odors (rotting odors) such as aging odor and sweat odor. Exhibits excellent deodorizing ability.
The deodorizing performance of cypress charcoal is effective for deodorizing acidic odors with charcoal roasted at a high temperature of 800 ° C or higher, and alkaline odor with charcoal roasted at medium temperature (final carbonization temperature is 500 ° C to 800 ° C). Effective against (septic odor).

Hinoki charcoal burns cypress at a high temperature in a charcoal kiln to carbonize it, but the carbonization temperature varies depending on the position of the timber in the kiln, and usually charcoal burned at medium temperature and charcoal burned at high temperature are mixed. However, it exhibits excellent deodorizing power for both alkaline and acidic odors.
It is also possible to adjust the balance of deodorizing power for acidic and alkaline odors by mixing cypress charcoal produced by baking at a high temperature and charcoal produced by baking cypress at a medium temperature.

  Although the deodorizing power of the deodorizing filter (nonwoven fabric bag containing granular charcoal) 4 deteriorates as the air purifier is used for a long time, the deodorizing filter 4 taken out from the basket-like case 5 is replaced by granular cypress charcoal 41. The deodorizing power can be maintained for a longer time by holding the non-woven fabric bag 42 containing the product in the sun for several hours, shaking, or blowing air.

  In order to make the most of the deodorizing performance of the granular cypress charcoal 41 enclosed in the non-woven bag 42, a space of 20 mm to 40 mm is provided between the basket-shaped case 5 in which the deodorizing filter 4 is housed and the blower 6. The non-woven bag 42 is formed by forming the space 10 and reducing the area surrounded by the outer edge of the deodorizing filter (nonwoven cloth bag) 4 with respect to the area surrounded by the inside of the frame member of the basket-like case 5. In addition to the air flow passing therethrough, it is desirable to create an air flow passing between the outer edge of the non-woven bag 42 and the frame member of the cage case 5.

Although the reason why the deodorizing performance is improved by doing so is not clear, turbulent flow occurs in the space (space) 10 formed by the space provided on the blow-out surface side of the non-woven bag 42 and touches granular cypress charcoal. It is thought that air will increase.
If the space between the basket-shaped case 5 in which the deodorizing filter 4 is housed and the blower 6 is too narrow, there is no effect, and if it is long, the length (thickness) of the air purifier only unnecessarily increases, 20 to 40 mm is desirable.
Further, it is desirable that the area surrounded by the outer edge of the non-woven bag 42 of the deodorizing filter 4 is about 80 to 90% of the area surrounded by the frame portion of the basket-shaped case 5. For example, when the outer diameter of the fan blade of the blower is 135 to 180 mm and the inner dimension of the frame member of the basket-shaped case 5 is about 185 mm × 185 mm, the area occupied by the non-woven bag in the ventilation passage is about 170 mm × 170 mm. It is good to say [170 mm × 170 mm) / (185 mm × 185 mm) = 0.84].

An example of specific dimensions of the main body of the air cleaner of the present invention is shown below.
・ Body size:
220mm width x 230mm height x 145mm thickness

As shown in FIG. 7, legs 11 having a short length may be attached to the four corners of the frame portion of the suction port of the main body 2 of the air cleaner 1. The legs 11 can be removable or foldable.
In the air purifier 1 having legs attached to the four corners of the frame of the suction port 21, when the legs 21 are placed on the floor with the suction port 21 of the main body 2 facing downward and the blowout port 22 facing upward. Since a space of about 2 to 3 cm can be maintained between the main body 2 and the suction port 21, the dust collecting filter 3 can be placed facing the floor, and the blowing direction can be changed. By doing so, it can be placed and used under a table or bed.

A pivotable handle may be attached to the side surface of the main body 2 so that the air cleaner 1 can be conveniently carried.
FIG. 8 shows an example of an embodiment in which the handle 12 is attached to the main body 2 of the air purifier 1 to which the legs 11 are attached. In the embodiment shown in this figure, a hole is made in two opposing side surfaces (a surface that is not a ceiling surface or a bottom surface) of the main body 2, and a shaft member attached to the end of the handle 12 is inserted into this hole. The handle 12 is attached so as to traverse over the ceiling surface of the main body 2 so as to be rotatable.
The handle 12 may be smaller than that of the embodiment shown in FIG. 8, and for example, both ends of the handle may be fixed and attached to the ceiling surface of the main body 2.

  When the leg 11 is hung on the wall of the room by a hanging hook or the like via the handle 12, the air cleaner 1 with the handle 12 is suspended from the wall surface and the dust collecting filter 3 of the air cleaner 1. Since there is a gap between them, the air cleaner 1 can be used in a state of being suspended on the wall surface of the room.

The air purifier of the present invention is not complicated in structure of the dust collecting filter, the deodorizing filter, and the basket-like case, so that the manufacturing cost can be suppressed. In addition, since granular cypress charcoal is light and has a high deodorizing performance, the deodorizing filter can be made relatively thin and lightweight, and the air purifier can be made compact and lightweight, and the amount of air blown by the fan of the blower can also be increased. It can be made small, noise can be suppressed, and it is suitable for long-term use.
Furthermore, since the dust collecting filter and the deodorizing filter can be easily replaced, the air purifier can be easily managed.

1: Air purifier 2: Main body 21: Main body suction port 22: Main body outlet 23: Protrusion 24: Protrusion 25: Protrusion 26: Lid 3: Dust collecting filter 31: Non-woven fabric 32: Support frame 321: Frame member 322: Cross member 33: Holding frame 4: Deodorizing filter 41: Cypress granular charcoal 42: Nonwoven bag 5: Basket case 51: Case member 52: Case member 6: Blower 7: Mounting frame 8: Panel 9: Operation unit 10: space
11: legs 12: handle

Claims (7)

A body that has an air inlet and outlet, a dust collection filter that removes the dust of the air sucked from the body inlet, and a deodorizing filter that deodorizes the air that has passed through the dust collection filter and the air is sucked from the body inlet An air purifier in which a blower for letting air out from the air outlet of the main body is housed in the main body,
The dust collection filter consists of a non-woven fabric supported by a support frame attached to the suction port of the main body,
The deodorizing filter consists of a non-woven bag made by adhering the peripheral parts of two non-woven fabrics and enclosing granular cypress charcoal in a basket-like case placed between the dust collecting filter and the blower. Paid
The air blower is an air purifier characterized by being arranged between the basket-like case and the air outlet of the main body.   By providing a space of 20 mm to 40 mm between the basket-like case and the blower to form a space, and making the area surrounded by the outer edge of the deodorizing filter smaller than the inner area surrounded by the frame portion of the basket-like case. The flow of air passing between the outer edge of the deodorizing filter and the frame member of the basket-like case is formed in addition to the flow of air passing through the non-woven bag of the deodorizing filter. Air purifier.   The air purifier according to claim 1 or 2, wherein the granular cypress charcoal is granular having an average length of 1 to 10 mm.   The air cleaner according to any one of claims 1 to 3, wherein two nonwoven fabrics constituting the nonwoven fabric bag are bonded at their central portions.   The air purifier according to claim 1, wherein the deodorizing filter is formed by connecting a plurality of granular cypress charcoal sealed in the non-woven bag.   When the air purifier is placed on the floor of the room with the dust filter side down, a plurality of legs capable of holding a space between the floor and the main body are provided in the frame portion forming the suction port of the main body. The air purifier according to claim 1, wherein the air cleaner is provided at four corners.   The air cleaner according to any one of claims 1 to 6, wherein a handle is attached to the main body.