Stay Updated with KCVENTS
Ventilation & HVAC Solutions

Subscribe to our newsletter for the latest airflow engineering insights, energy-efficient ERV/HRV system updates, and eco-friendly HVAC solutions.

Be the first to receive exclusive technical guides, custom OEM/ODM capabilities, and global exhibition news directly from KCVENTS.

Fresh Air Ventilation and Filtration Systems

KCVENTS fresh-air ventilation products cover ductless room supply, ducted filtration, passive air inlets and cabinet-style ventilation. Define the outdoor-air rate, air path, pollutant concern, filter stages, pressure loss, service access and controls before selecting a product.

عرض ⁦5⁩ من كل النتائج

Choose a fresh-air product by deciding whether the project needs outdoor-air intake, particle filtration, passive make-up air or a cabinet ventilation unit. Then check airflow, filter stages, pressure loss, wall or duct access, noise, power and maintenance. A filter can clean an air stream, but it does not by itself provide outdoor-air exchange.

Quick answer

Use VT501-F for a ductless filtered room retrofit, Filter Box when a ducted system needs staged filtration, and the thermostat valve when a passive inlet is acceptable. DPT-J is a cabinet-style path for projects requiring multiple filtration stages and stable fresh-air delivery.

Ductless room

VT501-F is a wall-mounted filtered fresh-air fan for rooms where central ductwork is not practical.

Ducted filtration

Filter Box combines primary, activated-carbon and HEPA stages in an inline duct housing.

Passive inlet

The thermostat valve uses no power and provides a passive outdoor-air inlet with manual adjustment.

Representative model paths

Filter performance and airflow must be checked at the selected configuration.

Product path Current page evidence Project question
Wall-mounted HEPA Fan VT501-F Lists up to 360 m3/h, 90-240 V input and a standard wall retrofit format. What room airflow, filter configuration and wall opening are required?
Filter Box Lists primary, activated-carbon and HEPA stages with 4, 6, 8 and 10 inch sizes. What filter stages and allowable pressure loss fit the fan curve?
DPT-J Fresh Air Ventilation Lists a metal filter, pre-filter, H11 HEPA, activated-carbon and negative-ion options. Which stages are required, and how will filters be serviced?

Specification basis: the linked product pages currently state the listed options. Confirm tested efficiency, pressure drop, replacement filter availability, electrical data and the latest product revision before ordering.

"Ventilation removes indoor air that may be concentrated with airborne viruses and replaces it with fresh outdoor air."

The U.S. EPA's The Inside Story notes that other research indicates people spend approximately 90% of their time indoors, and cites findings that levels of several organic pollutants average 2 to 5 times higher indoors than outdoors. This is indoor-air context, not a performance claim for any KCVENTS model. See the EPA source.

Fresh-air and filtration questions

Use these answers to define the air path before selecting equipment.

Is a filter box the same as a fresh-air ventilator?

No. A filter box conditions air moving through a duct. The ventilation fan or air-handling system still determines whether outdoor air is supplied and at what rate.

When is a ductless wall unit useful?

A wall unit can be useful in a retrofit or room-by-room project where central ductwork is unavailable. Confirm wall construction, outdoor access, sound, filter service and room airflow.

Does a passive fresh-air valve need electricity?

The listed thermostat valve is a passive inlet and does not require a power supply. It does not provide mechanical airflow or heat recovery, so the overall ventilation path must be checked separately.

What should a filtration RFQ include?

Include outdoor-air rate, pollutant or odor concern, filter stages, target pressure drop, duct or wall dimensions, power, controls, replacement-filter plan, quantity and market documentation.

Need a model recommendation?

Send the application, required airflow, wall construction, target market, voltage or plug requirement, certification needs and estimated quantity.

KCVENTS can then confirm the suitable model variant, available controls and the documentation required for your project.
Request Project Support