In hot, humid climates the hardest part of air conditioning is not the heat, it is the moisture. Conventional cooling coils can lower the air temperature, but removing latent load cheaply requires either over-cooling and then reheating, or a separate dehumidification step. A desiccant wheel paired with an enthalpy recovery wheel answers both problems at […]
Cold Storage and Freezer Heat Recovery: Trickling Warm Air Back In
Cold storage and freezer warehouses are designed to keep heat out, yet they constantly generate small, unavoidable heat loads and must ventilate specific areas to stay safe and code-compliant. The paradox of recovery in a refrigerated building is that you never want to warm the cold space, but you often must condition the air at […]
Brewery & Distillery Heat Recovery: From Coppers to Mash Tun
A brewery or distillery is a heat engine dressed up as a beverage plant. From mash tun heating and wort boiling to still operation and CIP rinsing, these processes consume thermal energy in bursts that dwarf the lighting and comfort loads of the building. At the same time, every one of those hot steps produces […]
Make-Up Air Units (MAU) for Cleanrooms: Sizing Heat Recovery Right
Cleanrooms are among the most energy-intensive spaces in any facility. They run high air-change rates of conditioned, filtered air around the clock, and because good practice supplies a large fraction of that as 100 percent outdoor air, the heating and cooling load on the make-up air unit (MAU) is enormous. Sizing heat recovery correctly on […]
塗装・スプレーブースの熱回収：温風補給空気の安全な再利用
Paint and powder-coating spray booths move enormous volumes of air. To keep solvent and overspray concentrations safely below explosive limits, fire codes require a high rate of exhaust, and an equal volume of tempered make-up air must be drawn in to replace it. In winter that make-up air arrives at outdoor temperature and must be […]
Retrofitting Heat Recovery Ventilation into Older Buildings
Older commercial and institutional buildings were rarely designed with energy recovery in mind. They were built when fuel was cheap and ventilation was treated as a simple exhaust-and-make-up-air problem. Today, with tighter efficiency expectations and higher energy prices, those same buildings leak heat through every cubic metre of ventilated air. Retrofitting heat recovery ventilation (HRV) […]
Primary (Pre) Filters G1-G4: Types & Selection
Primary (pre) air filters G1-G4 protect downstream stages and cut cost. Compare panel, pocket, roll and washable types, with specs and a practical selection checklist.
Medium Filters F5-F9: Pocket, Panel, V-Cell & Selection
Medium-efficiency filters F5-F9 are the workhorses of clean commercial and industrial air. Compare pocket, rigid V-cell and panel builds, with specs and selection tips.
HEPA/ULPA フィルター H10-H14：タイプ、仕様、選定
HEPA and ULPA filters H10-H14 deliver near-total removal of sub-micron particles for cleanrooms, ORs and pharma. Compare mini-pleat, separator and box builds with specs.
初効率 vs 中効率 vs 高効率フィルター：横並び比較
A one-page comparison of primary (G1-G4), medium (F5-F9) and HEPA/ULPA (H10-H14) air filters-efficiency, pressure drop, life, cost and where each belongs.