Allerair AirTube Series Pre- Filter Replacements
Product Description

The Allerair Standard Pre-Filter is designed to trap larger dust particles. It can be removed and replaced every two to three months with a new Pre-Filter or some people prefer to extend the Pre-Filter's life by removing and cleaning it more regularly with a vacuum cleaner. The Pre-Filter acts to stop the larger particles such as dust and lint from clogging the other filters.
AirTube Series Pre-Filter Replacement Choices:
AirTube Standard Pre-Filters (in a 4-Pack)
AirTube Standard Pre-Filters (in a 8-Pack)
Recommended Pre-Filter Replacement Schedule*
Pre-Filter: every 2 to 3 months
*Based on use in a normal home environment.