Confirm space volume and air changes
Confirm with on-site conditions, system parameters and official product documents.
High-Volume Exhaust Ventilation
Negative Pressure Fan
High-volume exhaust fans drive whole-space air exchange for ventilation and heat removal in factories, workshops and warehouses.
- Product Name
- Negative Pressure Fan
- Main Use
- Exhaust · Whole-space Ventilation · Cooling
- Support
- Technical consulting · Professional selection · After-sales support
Overview
Negative Pressure Fan Overview
Negative pressure fans continuously exhaust warm indoor air, creating slight negative pressure that draws fresh outdoor air through openings for rapid whole-space ventilation and cooling. Xin Changfeng negative pressure fans suit factories, workshops, warehouses and large spaces, matched to space volume, air changes and inlet area.
Specific models and performance parameters must be confirmed with on-site conditions, duct resistance, installation and official selection documents.
Performance points
Negative Pressure Fan Performance & Selection
Check fan airflow and unit count
Confirm with on-site conditions, system parameters and official product documents.
Reserve sufficient inlet area
Confirm with on-site conditions, system parameters and official product documents.
Watch mounting and energy use
Confirm with on-site conditions, system parameters and official product documents.
Specifications
Parameters to Confirm for Selection
This page does not substitute official product documents. Final models and performance data are subject to technical confirmation.
ParameterDetails
ApplicationFactory, workshop or warehouse
Space volumeSets airflow and air-change rate
Inlet areaConfirm openings for make-up air
InstallationWall or window opening size
EnvironmentTemperature, dust and protection
OperationDuty cycle, energy and speed control
Applications
Typical Applications
Factory workshops
Actual suitability must be confirmed with on-site conditions, system parameters and product documents.
Ask about this application ↗Warehouses
Actual suitability must be confirmed with on-site conditions, system parameters and product documents.
Ask about this application ↗High-temperature areas
Actual suitability must be confirmed with on-site conditions, system parameters and product documents.
Ask about this application ↗Whole-space ventilation
Actual suitability must be confirmed with on-site conditions, system parameters and product documents.
Ask about this application ↗Case studies
Negative Pressure Fan Case Studies
Quality & service
Quality First, Customer Foremost.
Xin Changfeng follows the ISO9001 quality management system, centered on technical innovation and quality, with pre-sales, in-sales and after-sales service.
- Project requirements & technical consulting
- Product selection & sales support
- Manufacturing quality management
- After-sales technical support & service
Product FAQ
Negative Pressure Fan FAQ
Large spaces such as factories, workshops and warehouses for ventilation and cooling.
Yes, reserve enough doors, windows or vents, or exhaust performance drops.
Calculate total airflow from volume and air changes, then divide by per-unit airflow.
Yes, they use far less power than air conditioning for general ventilation and cooling.