The First Air Filter Proven to Reduce Humidity — DeltaPleat™ H11 Retrofit
Introducing DeltaPleat™ H11 hydrophobic air filters from Brookaire: a breakthrough in air filtration technology engineered specifically for environments using evaporative cooling systems. Independently tested to reduce relative humidity by up to 21%. Fits your existing filter racks. No system modification required.
Drop-In Retrofit
Fits existing standard filter racks with zero modification to your equipment or ductwork.
Humidity Reduction
Independently tested. First air filter proven to reduce relative humidity.
Critical Environments
Engineered for data centers, food processing, pharma, manufacturing, and industrial cooling.
Air Quality
H11 HEPA-grade filtration captures particulates while actively reducing humidity load.
A Breakthrough in Commercial Air Filtration
DeltaPleat™ H11 is a hydrophobic air filter from Brookaire — a transformative solution for facilities seeking reduced humidity, enhanced energy efficiency, optimal indoor air quality, and reliable equipment performance.
Evaporative cooling has become the preferred choice for many industries thanks to its energy-efficient approach to climate control. By drawing air through moistened pads or media, evaporative cooling systems lower air temperatures and circulate fresh, cool air — but they also introduce significant moisture load into the airstream.
DeltaPleat™ H11 addresses that moisture load directly, making it the first air filter with a documented, independently verified humidity-reduction capability. For facilities running evaporative cooling, this means fewer humidity-related equipment failures, reduced corrosion, better product quality, and lower energy costs.
Why Hydrophobic Matters
Standard air filters absorb and retain moisture — adding to the humidity burden on your HVAC system. DeltaPleat H11's hydrophobic media actively repels moisture, reducing the relative humidity of air passing through by up to 21%. That's not a claim — it's independently tested data.
H11 Filtration Grade
The H11 HEPA-equivalent efficiency rating means DeltaPleat captures fine particulates, bioaerosols, and contaminants that standard commercial filters miss — while simultaneously reducing humidity. It's a dual-function upgrade in a single drop-in retrofit.
What Your Facility Gains from a DeltaPleat Retrofit
By installing DeltaPleat™ H11 hydrophobic air filters, facilities using evaporative cooling systems gain measurable improvements across five performance dimensions.
🌈 Reduced Humidity — Up to 21%
The core claim, backed by independent testing. Reducing relative humidity by 21% in a food processing, pharmaceutical, or data center environment translates directly to reduced corrosion, longer equipment life, better product stability, and lower energy consumption from downstream dehumidification.
⚡ Enhanced Energy Efficiency
Lower humidity entering the conditioned space reduces the latent cooling load on your HVAC system. Your cooling equipment runs less to maintain setpoint — reducing runtime, compressor cycling, and energy costs. In high-humidity environments, this savings compounds significantly over an operating season.
🏭 Optimal Indoor Air Quality
H11-grade filtration captures fine particulates, mold spores, bacteria, and bioaerosols that lower-grade filters pass through. Combined with humidity reduction — which inhibits mold and microbial growth — DeltaPleat creates a measurably cleaner, healthier indoor environment.
🔧 Reliable Equipment Performance
Excess humidity is one of the leading causes of premature HVAC equipment failure — it accelerates coil corrosion, promotes scale buildup, degrades electrical components, and causes condensation in ductwork. DeltaPleat reduces the moisture load that drives those failure modes, extending equipment service life.
📦 Fits Existing Filter Racks
No equipment modification. No custom fab. DeltaPleat H11 filters are sized to fit standard commercial filter racks — meaning a Blue Box HVACR PM visit is all it takes to retrofit your existing system. There's no capital project, no downtime, and no engineering required.
✅ Seamless Cooling Operations
DeltaPleat guarantees seamless cooling operations while keeping maintenance costs and environmental impact at a minimum. The hydrophobic media doesn't clog with moisture the way standard filters do — maintaining consistent airflow and static pressure throughout its service life.
Facilities Where DeltaPleat™ H11 Delivers the Most Value
Food processors using evaporative cooling face constant humidity challenges — moisture ingress affects product shelf life, packaging integrity, and sanitation scores. DeltaPleat H11 reduces humidity load at the air entry point, addressing the problem before it reaches the production floor.
Pharmaceutical manufacturing environments require strict humidity control for product stability and regulatory compliance. DeltaPleat provides documented, reproducible humidity reduction that integrates into existing HVAC infrastructure without GMP-triggering system changes.
Evaporative cooling is increasingly common in data center cooling strategies. Humidity-related corrosion and condensation are key failure risks. DeltaPleat reduces that risk at the air intake without sacrificing the energy efficiency advantages of evaporative cooling.
Large warehouse and distribution facilities with evaporative cooling systems face door seal degradation, racking corrosion, and humidity-sensitive inventory. DeltaPleat H11 addresses these issues at the HVAC level — reducing humidity before it enters the occupied space.
Metal fabrication, plastics manufacturing, and electronics assembly all run quality-sensitive processes where ambient humidity directly impacts yield. DeltaPleat reduces humidity load without requiring costly dedicated dehumidification equipment.
Controlled environment agriculture (CEA), mushroom cultivation, and specialty crop facilities use evaporative cooling extensively. Precise humidity control is essential. DeltaPleat H11 provides an additional tool for humidity management without additional mechanical systems.
DeltaPleat™ H11 — Product Details
| Specification | Detail |
|---|---|
| Manufacturer | Brookaire |
| Model | DeltaPleat™ H11 |
| Filter Grade | H11 (HEPA-equivalent efficiency) |
| Media Type | Hydrophobic — actively repels moisture |
| Humidity Reduction | Up to 21% reduction in relative humidity (independently tested) |
| Primary Application | Evaporative cooling environments; critical environments requiring humidity control |
| Installation | Drop-in retrofit — fits existing standard filter racks |
| System Modification Required | None |
| Benefits | Humidity reduction, improved air quality, reduced energy consumption, extended equipment life, lower maintenance costs |
| Available Through | Blue Box HVACR — (484) 240-9817 |
DeltaPleat™ H11 — What Facility Managers Ask
How is a hydrophobic air filter different from a standard commercial filter?
Standard commercial air filters (MERV 8, MERV 13, etc.) are typically made from fibrous media that absorbs moisture. In an evaporative cooling environment, this means the filter media itself becomes saturated — adding to the humidity burden, reducing airflow as static pressure rises, and creating a hospitable environment for microbial growth. DeltaPleat H11's hydrophobic media repels moisture rather than absorbing it, which is what enables the documented humidity-reduction effect.
Does DeltaPleat H11 work with any evaporative cooler, or specific brands only?
DeltaPleat H11 is designed as a universal drop-in filter that fits standard filter rack dimensions. It works with any evaporative cooling system — direct evaporative, indirect evaporative, or two-stage — regardless of brand. Blue Box HVACR will verify your filter rack dimensions during the retrofit assessment.
How often does DeltaPleat H11 need to be replaced?
Service intervals depend on your facility's particulate load and air volume. Blue Box HVACR will recommend a replacement schedule based on your specific environment during the retrofit assessment. Because the hydrophobic media doesn't saturate with moisture, DeltaPleat typically maintains consistent airflow performance longer than standard moisture-absorbing filters in evaporative cooling environments.
Can Blue Box HVACR handle the full retrofit including measurement and installation?
Yes. Blue Box HVACR manages the full DeltaPleat retrofit process — site assessment, filter rack measurement, filter specification, installation, and documentation. We serve commercial and industrial facilities throughout the Lehigh Valley, Berks County, Lancaster County, and Montgomery County PA. Call (484) 240-9817 to schedule a retrofit assessment.
Ready to Retrofit Your Facility with DeltaPleat™ H11?
Blue Box HVACR handles the full retrofit — site assessment, measurement, installation, and documentation. Serving the Lehigh Valley, Berks County, Lancaster County, and Montgomery County PA.