Air filter apparatus with adhesive air filter (adaf) and components for air purification, and systems using the same

A cassette, comprising:

• a casing;
• a supply bobbin and a return bobbin coupled to the casing in a way that they can be rotated;
• and
• an oblong flat flexible tape having a first end coupled to the supply bobbin and a second end coupled to the return bobbin, the tape wound at least in part on the supply bobbin, the tape having two opposite sides, at least one of the sides having a surface coated with an adhesive.

A stand-alone air filter apparatus that is configured to remove, from air that is in an enclosure and in which particulates are suspended, at least a fraction of the particulates, the stand-alone air filter apparatus comprising:

• a housing having an intake opening and an exit opening;
• a base structure within the housing;
• an adhesive air filter within the housing that includes an adhesive surface;
• and
• an air propulsion mechanism coupled to the base structure and configured to establish an air flow of the air, and
• in which the base structure is configured such that the air flow goes from the intake opening past a vicinity of the adhesive air filter and out of the exit opening, and at least some of the particulates of the air in the air flow impact the adhesive surface and become adhered to the adhesive surface.

An air conditioning system, comprising:

• a housing having an intake opening and an exit opening;
• a base structure;
• an air propulsion mechanism coupled to the base structure and configured to establish an air flow of air within the housing, and in which particulates are suspended;
• an air cooling mechanism configured to cool the air within the housing;
• and
• an adhesive air filter that includes an adhesive surface, and
• in which the base structure is configured such that the air flow goes from the intake opening past a vicinity of the adhesive air filter and out of the exit opening, and at least some of the particulates of the air in the air flow impact the adhesive surface and become adhered to the adhesive surface.

The air conditioning system of claim 98, in which

• the adhesive air filter permits light to go through it, and
• the detected feature is an amount of light that transverses the adhesive air filter.
• The air conditioning system of claim 100, further comprising:
• a test light source configured to output test illumination that reaches the adhesive surface, and
• in which the amount of light that transverses the adhesive air filter includes the test illumination.

A vehicle, comprising:

• a body that forms a passenger compartment that is configured to receive people therein, the passenger compartment containing air in which particulates are suspended;
• wheels coupled to the body in a way that they can rotate;
• an engine configured to operate so as to cause the wheels to rotate;
• and
• an intake opening and an exit opening that communicate with the passenger compartment;
• a base structure;
• an adhesive air filter that includes an adhesive surface;
• and
• an air propulsion mechanism configured to establish an air flow of the air, and
• in which the base structure is configured such that the air flow goes from the intake opening past a vicinity of the adhesive air filter and out of the exit opening, and at least some of the particulates of the air in the air flow impact the adhesive surface and become adhered to the adhesive surface.