Features enhanced activated carbon for better odor control.The Alen A350/A375 Plus Replacement Air Filter fits the Alen A350 or A350 Plus air purifier and features enhanced activated carbon for better odor control. The filter life is 6 to 9 months with HEPA filter efficiency of 99.97%.The Alen A350/A375 Plus Replacement Air Filter fits the Alen A350 or A350 Plus air purifier and features enhanced ... more...

Features enhanced activated carbon for better odor control.The Alen A350/A375 Plus Replacement Air Filter fits the Alen A350 or A350 Plus air purifier and features enhanced activated carbon for better odor control. The filter life is 6 to 9 months with HEPA filter efficiency of 99.97%.The Alen A350/A375 Plus Replacement Air Filter fits the Alen A350 or A350 Plus air purifier and features enhanced activated carbon for better odor control. The filter life is 6 to 9 months with HEPA filter efficien   less...

A pack of eight for your air purifier.This Pro-dense AllerAir 8000 Series Pre-Filter - 8 Package traps larger particles, easing the burden on HEPA and carbon filters. The AllerAir recommends changing your pre-filter every 3 months. It comes in package of 8.This Pro-dense AllerAir 8000 Series Pre-Filter - 8 Package traps larger particles, easing the burden on HEPA and carbon filters. The AllerAir r... more...

A pack of eight for your air purifier.This Pro-dense AllerAir 8000 Series Pre-Filter - 8 Package traps larger particles, easing the burden on HEPA and carbon filters. The AllerAir recommends changing your pre-filter every 3 months. It comes in package of 8.This Pro-dense AllerAir 8000 Series Pre-Filter - 8 Package traps larger particles, easing the burden on HEPA and carbon filters. The AllerAir recommends changing your pre-filter every 3 months. It comes in package of 8....click to read more ab   less...

A HEPA filter with 99.7% efficiency that will serve you well up to a period of nine months.The Alen A350 Replacement Air-Filter fits the Alen A350 or A350 Plus air purifier and features enhanced activated carbon for better odor control. The filter life is 6 to 9 months with HEPA filter efficiency of 99.97%.The Alen A350 Replacement Air-Filter fits the Alen A350 or A350 Plus air purifier and featur... more...

A HEPA filter with 99.7% efficiency that will serve you well up to a period of nine months.The Alen A350 Replacement Air-Filter fits the Alen A350 or A350 Plus air purifier and features enhanced activated carbon for better odor control. The filter life is 6 to 9 months with HEPA filter efficiency of 99.97%.The Alen A350 Replacement Air-Filter fits the Alen A350 or A350 Plus air purifier and features enhanced activated carbon for better odor control. The filter life is 6 to 9 months with HEPA fil   less...