3M Air Purifiers - Recent Questions, Troubleshooting & Support

I have this machine. Change the filter. Turn back on. The "reset" button on the top of the machine is very narrow. Place your fingernail into that Reset button and hold till it starts to blink red. After about 3 blinks the light will go off. The reset button is now reset for the new filter.

This may help. For FAP02 and FAP03 reset the filtertimer by holding down the FILTERCHANGE button for three seconds.A red light comes on. Before it disappears, the light will start flashing quickly as you continue to hold thebutton. The timer is reset. https://www.manualslib.com/manual/565968/3m-Fap01-Rs.html?page=4#manual

HEPA is a type of air purifier. It stands for high-efficiency particulate air. To qualify as a HEPA filter by government standards the filter must remove 99.7% of all particles larger than 0.3 micrometers from the air. The following site lists the top 10 HEPA purifiers available online - http://www.air-purifiers-america.com/AP101_top10.asp.

I am also experiencing this problem, as well as 2 other people that I found on google, so I am inclined to think tha 3M has changed something in their manufacturing process, I think it very odd that this problem is manifesting itself at this time in different locations.
I have been using this product for sometime, and the problem of filters turning very dark did not exist when I started using this product

The fuel injectors are grounded by the computer which makes the injectors pulse.

The Replacement Filter 9 1/2 x 7 1/4 can be purchased onthese websites: http://www.officecommunications.com/storefront/Filtrete-Replacement-Filter-9-12-x-7-14-P-6670and http://www.suppliesguys.com/supplies/Air-Purifier-Filters/OAC100RF.htm

More or less, the Replacement Filter 9 1/2 x 7 1/4 costs around $35.

Yes, it surely does! The carbon filter prevents unpleasant odors.

A good idea will be to replace it every 2-3 months.

The ReplacementFilter 9 1/2 x 7 1/4 is used to fight against microscopic allergens, as well as large allergens.

The Replacement Filter 4 1/4 x 10 1/4 cost around $25. You can purchase it at these websites: http://www.databazaar.com/Office-Equipment-Equipment-Supplies/Office-Environment/Air-Cleaners-Filters/3m-MMMOAC50RF.html and http://www.clicksupplies.com/storefront/Filtrete-Replacement-Filter-4-14-x-10-14-P-29564

The Replacement Filter 4 1/4 x 10 1/4 weighs .17 lbs.