HVAC & INDUSTRIAL FILTERS
Because Clean Air Matters
Longday AG specializes in high-performance air filtration for HVAC systems, cleanrooms, and industrial environments — including plastic processing machinery. We supply both OEM and replacement filters designed for reliable air purification, high energy efficiency, and long service life — covering every stage of filtration from coarse dust removal to ultra-clean HEPA and gas-phase filtration.Indoor air purification filters
Our Product Range
- Coarse & Pre-Filters (G2–G4): Metal mesh, nylon, polyester, and fiberglass filters for effective coarse dust and particle protection.
- Medium & Fine Filters (M5–F9): Pleated and bag filters that improve indoor air quality in offices, hospitals, schools, and industrial facilities.
- HEPA & ULPA Filters (H10–H14 / U15): High-efficiency filters for cleanrooms, laboratories, and high-tech production. Also available as high-temperature HEPA filters for paint curing, pharmaceutical drying, or sterilization processes up to 350 °C.
- Activated Carbon Filters: Effective odor and gas control — removing VOCs, SO₂, NH₃, and industrial fumes.
- Filters for Plastic Processing Machinery: Stainless-steel and synthetic filters ensuring clean process air for extrusion, drying, and conveying systems.
Applications
- HVAC and ventilation systems
- Cleanrooms and laboratories
- Food and pharmaceutical production
- Plastic processing and extrusion
- Industrial ventilation and filtration
- Buildings, workshops, and spray booths
Longday – Your Trusted OEM Partner for Clean Air Solutions.
Longday delivers proven filtration technology for industrial and indoor air applications — combining performance, durability, and flexibility.
For protective ventilation and advanced air purification, explore our DustRanger™ Series — engineered for reliable protection wherever clean air truly matters.
