A filter that fits ATMOS Air & Dual Air PIV. The Filter has a Velcro edge which attaches to the Envirovent unitG4 Grade filtration.It is advised that filters are changed every 4-5 years. If your unit is near a main road or a high pollen area you may need to change them after 2-3 years.Replacement Air Filter suitable for:ATMOS Air Dual StandardATMOS Air Dual WirelessATMOS Air Dual App EnabledATMOS Air StandardATMOS Air WirelessATMOS Air AppATMOS Air In-Line These filters are manufactured for us, in the UK, as replacement filters. They are in no way associated with the PIV air system manufacturer. The use of manufacturer names is solely for the purposes of identifying the correct filters.
