Lynden Door VanAir Ventilated Door: Solving the Airflow-Privacy Trade-off

The VanAir VA4 delivers what traditional ventilated doors can’t — 696 CFM of airflow at 50 Pa without foam while maintaining up to 25 STC acoustic privacy. No visible grilles. No compromise on aesthetics. Air flows in from one side, through the door core and out the opposing side, using an engineered vertical channel that makes traditional louvers obsolete.

This 1-3/4 inch (45 mm) flush door targets commercial contractors and residential builders who need real ventilation performance without sacrificing privacy or appearance. At up to 4 feet wide by 10 feet tall, it handles standard commercial openings with room for custom sizing.

Airflow Performance That Actually Matters

The numbers tell the story contractors need to hear. Without the acoustic foam insert, the VanAir moves serious air:

Pressure Differential	Airflow (No Foam)	Source
5 Pa	199 CFM	(manufacturer)
10 Pa	312 CFM	(manufacturer)
20 Pa	436 CFM	(manufacturer)
50 Pa	696 CFM	(manufacturer)

For projects demanding acoustic control, the sound option foam seal cuts airflow roughly in half but still delivers:

Pressure Differential	Airflow (With Foam)	Source
5 Pa	100 CFM	(manufacturer)
10 Pa	156 CFM	(manufacturer)
12 Pa	170 CFM	(manufacturer)
50 Pa	355 CFM	(manufacturer)

The 80 to 140 square inches of ventilation area translates to approximately 50% of the ventilation area as unrestricted free area. Compare that to 15-30% for traditional louvers. More open area means better airflow efficiency and less pressure drop across the door.

Acoustic Engineering Beyond Marketing Claims

Lab-tested baffling and resonators integrated into door core to block high and low frequency sound. The integrated acoustic baffles and Helmholtz resonators aren’t afterthoughts — they’re tuned to both high and low frequencies for balanced sound attenuation.

Testing to ASTM E90-09 (sound transmission loss) and ASTM E413-10 (classification) standards backs up the performance claims. Up to 25 STC (with perimeter seal) puts this door in the same acoustic territory as many solid core doors, while still moving air.

The VA4 maintains acoustic and visual privacy while allowing air exchange; undercuts compromise sound isolation. That’s the real advantage — maintaining privacy standards while solving ventilation problems.

Real-World Performance Benefits

The health and humidity control data matters for selling these doors to end users. Documented 20% reduction in CO2 buildup in bedrooms addresses a real indoor air quality issue. Reduces bathroom/laundry humidity by up to 20% compared to standard doors — that’s measurable moisture reduction without mechanical ventilation.

Construction specs show professional-grade materials throughout. Engineered wood composites with integrated vertical air channel form the core. Face options include HPVA Architectural ‘A’ grade wood veneer (standard) with upgrades to AA grade veneer available. For painted applications, choose from paint-grade MDO, hardboard, or HPDL (High Pressure Decorative Laminate).

Environmental certifications check the boxes contractors need: NAUF (No Added Urea-Formaldehyde), no-VOC factory finishes, FSC-certified wood options available. The door meets TSCA Title VI Compliant standards and comes with an EPD (Environmental Product Declaration) available.

Installation stays straightforward. Supplied pre-assembled; factory machined for hardware per shop drawings; requires no special adapters. Standard hinges, closers, and sweeps; lock blocks pre-installed. For maximum acoustic performance, Lynden Door recommends PEMKO STCSET-1A full perimeter seal set for maximum STC performance.

The VanAir works across both residential and commercial applications. Residential uses include bedrooms, home offices, laundry rooms, bathrooms, home theatres, pantries, and mudrooms. Commercial applications span offices, meeting rooms, phone booths, IT/copy rooms, schools, healthcare facilities, hotels, and mechanical rooms.

Coverage includes a 1-Year Limited Warranty for defects in material and workmanship, with the constraint that it’s for interior use only.

FAQ

What’s the actual airflow capacity of the VanAir door?

696 CFM at 50 Pa without foam, dropping to 355 CFM at 50 Pa with sound option foam seal. At the more typical 10 Pa pressure differential, expect 312 CFM without foam or 156 CFM with the acoustic insert.

How does the acoustic performance compare to solid doors?

The VanAir achieves up to 25 STC (with perimeter seal) using integrated acoustic baffles and Helmholtz resonators. That’s competitive with many solid core doors while still providing ventilation.

Can these doors be customized for specific openings?

Yes. Standard sizes go up to 4 feet 0 inches (1220 mm) wide and 10 feet 0 inches (3048 mm) tall, with custom sizes available on request.

What face materials work with the VanAir system?

The door accepts HPVA Architectural ‘A’ grade wood veneer (standard), AA grade veneer (optional), paint-grade MDO, hardboard, or HPDL (High Pressure Decorative Laminate). Factory finishing includes transparent or opaque options.

Does the VanAir require special hardware or installation?

No. The door arrives pre-assembled; factory machined for hardware per shop drawings; requires no special adapters. It works with standard hinges, closers, and sweeps; lock blocks pre-installed.