22x30x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack Cone Filler Designed to be used indoors

Designed to be used indoors

Graphite Sensor– Reduces polarization effects and does not oxidize resulting in a reliable and accurate reading

Beetles (including Darkling and Hide Beetles)

you can use Tweetmint as an odor eliminator

Once they touch the substance inside the DiveJar

22x30x1 MERV 14 Plus Carbon AC Furnace Filters 6 Pack Cone Filler Designed to be used indoorsNordic Pure Custom MERV 14 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering. As with all Nordic Pure filters, the effective life of your filter depends on the environment in which you live. We recommend changing 1 and 2 filters every 30 90 days. Our 4, 5 and 6 inch thick filters could last up to 6 months. EXACT MEASUREMENT: Furnace and air condition