Air filtering installations; Air filters for air conditioning units; Air filters for domestic use; Air filters for furnaces; Air filters for heating and cooling registers; Air filters for HVAC units; HEPA filters for household use

Retail store services featuring air filters for heating, cooling and HVAC systems; Subscription-based order fulfillment services in the field of HVAC replacement filters

HVAC contractor services; Maintenance of HVAC systems

Delivery of filters for use with HVAC systems to club members on a periodic basis; Delivery of filters for use with HVAC systems