HVAC Air Filters Manufacturer and Supplier

Professional managed company who are in to manufacturing of next generation air filters for clean room, HVAC and clean room equipments, we have separate team for validation.

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HEPA ULPA Filter Leak Test

HEPA ULPA Filter Leak Test

Windsor Air Filters provides complete HEPA/ULPA filter integrity testing services for both the Pharmaceutical and Microelectronics industries. All filter integrity testing performed by Airmech is executed in accordance with international standards. Airmech is equipped to perform testing with both Di-Octyl Phthalata (DOP) and Poly Alpha Olefin (PAO) depending on your site's specific requirements.
All Airmech tech participate in an annual intensive training on our Standard Operating Procedures written to conform to the current standards and Current Good Manufacturing Practices (cGMP) governing critical environments.

HEPA/ULPA filters can last several years with the proper system design, maintenance programs and environmental conditions. To verify the integrity of HEPA/ULPA filters and to stay in conformance with various standards and/or governing agency requirements, filters should be tested and evaluated at a minimum once annually and potentiality twice annually.Proper documentation and certification also helps predict potential performance issues and increases filter life.
Windsor Air Filters is comfortable working in critical environments and under rigid time constraints. We can help you with your certification needs during your next shutdown. Whether working from an in-house testing procedure or one of the many extensive Standard Operating Procedures (SOP) written by Airmech, you can be sure you will receive a complete, cGMP compliant report at the completion of your testing.

Particle Count Test

Particle Count Test

Windsor provides complete airborne particle count cleanliness classification test is performed to determine the actual particle count level within the facility at the time of the test (As-Built, At-Rest, or Operational). Particle size(s) of interest, the room occupancy state and the room classification shall be known prior to the beginning of the tests and shall be as specified in the contract documents or as agreed to between the Owner/Buyer and the windsor.

We are Windsor - a reputed name in offering clean room validation services. Our Particle Count Test provides complete airborne particle count cleanliness classification. The test is performed to determine the actual particle count level within the facility at the time of the test. The test identifies particle count on basis of As-Built, At-Rest, or Operational. The particle size(s) of interest, the room occupancy state and the room classification shall be known prior to the beginning of the tests and shall be as specified in the contract documents.

Velocity Uniformity Test

Velocity Uniformity Test

These tests are performed to determine the average filter face velocity and uniformity, and / or the average room airflow velocity and uniformity within a cleanroom. Airflow velocity (meters per second or feet per minute) is a measurement of the speed of the airflow. An average velocity is calculated by dividing the cleanroom / filter area into equal grids and taking the airflow velocity in the center of each of these grids. The average airflow velocity is calculated by dividing the total of the airflow grid velocities by the number of readings taken.

We execute recovery tests for clients across Industries. These tests demonstrate the ability of the clean room to remove particulate by purging the area with filtered air. It also testifies if the room can change from a "dirty" to "clean" state within the specified time. The test is conducted by experienced technicians from our in-house team. Our technicians have enriching experience and provide clients with high quality service. The ultimate goal of our company is to assure complete satisfaction of clients through effective execution of services and by providing best array of clean room equipment. We ensure that client’s clean room facility is performing properly and accurately.

Air Volume Measurement

Air Volume Measurement

These tests are performed to determine the total air volume, get in to the room within a cleanroom. Airflow velocity (Cubic meters per Hour or Cubic feet per minute) is a measurement of the volume of the airflow.
Equipments Used:
TSI Accubalance Air Capture Hoods:
Model No.8371
TSI's Model 8371 Accubalance Air Capture Hood measure air volume flowing through registers, diffusers and grills. Weighing just seven and a half pounds, these air capture hoods are easy to carry, lift and use. Simply hold the Accubalance up to a diffuser or grill and read direct supply or exhaust airflow on the large digital display.

Room Pressurization Test

Room Pressurization Test

We conduct Room Pressurization Test for industrial clean rooms. As a part of the validation process, this test verifies that a pressure differential meet the specified requirements. We make use of Dwyer make Digital Manometer Model 477, for conducting the Room Pressurization Test. All tests are conducted by experienced and well trained technicians assuring highest level of test accuracy.

Two levels of temperature and humidity tests are used. The first, general temperature and humidity uniformity tests. The general level test is used to demonstrate that the cleanroom HVAC systems will maintain the specified levels of temperature and humidity required primarily for occupant comfort. The comprehensive level test is used to demonstrate that the cleanroom HVAC systems will maintain the specified levels of temperature and humidity required for both occupant comfort and process temperature control.

Airflow Pattern Test

Airflow Pattern Test

The purpose of the airflow parallelism test is to show the actual airflow pattern throughout the unidirectional cleanroom. It can also be used to demonstrate the effects on airflow caused by equipment. This test should be performed after all airflow velocity and uniformity tests and room pressurization tests have been performed. Determining the airflow patterns within a room is performed using various mediums which include the following non contaminating items; smoke, vapor source or streamers of thread or string.
Windsor airfilters performs cleanroom visualization for customers to monitor airflow characteristics in
cleanrooms and other spaces. This visual monitoring service is important in:
• Cleanroom laminar flow tests
• Airflow balancing
• Wet bench exhaust optimization
• Chemical process equipment ventilation tests
• Personnel safety exhaust verification
• Pressure balancing between rooms and spaces
• Leak detection in ducts
Visualisation is carried out by using the portable Visible Vapor Generator and taking Video Graph

Temperature Measurement

Temperature Measurement

We conduct validation tests that include Temperature and Humidity Measurements / Tests . Two levels of temperature and humidity tests are used. The first, general temperature and humidity uniformity tests. The general level test is used to demonstrate that the cleanroom HVAC systems will maintain the specified levels of temperature and humidity required primarily for occupant comfort.

The comprehensive level test is used to demonstrate that the cleanroom HVAC systems will maintain the specified levels of temperature and humidity required for both occupant comfort and process temperature control.


We conduct validation tests that include Temperature and Humidity Measurements / Tests. Two levels of temperature and humidity tests are used by us depending on the requirement. In the first level, general temperature and humidity uniformity are tested. The general level test is used to ensure that the clean room’s HVAC system maintains the specified levels of temperature and humidity required for occupant comfort.

The second level or the comprehensive level test identified that the clean room HVAC systems needs to maintain the specified levels of temperature and humidity required for both occupant comfort and process temperature control.

Light Intensity Test

Light Intensity Test

The purpose of the lighting level tests is to verify that the installed light levels and uniformity meet the specified requirements. We make use of modern testing instruments for assessment of lighting lux levels and intensity.

We perform noise level test that measure the sound pressure. The measurements will vary based on the occupancy state-of-the-art clean room. The purpose may vary but the procedures of testing are identical

Containment Leak Test

Containment Leak Test

We conduct Containment Tests for client's clean room facility. The test is carried to demonstrate that airborne contamination does not enter from a higher pressure area adjacent to the clean room by means of leaks in the construction materials. The test is conducted by trained and experienced technicians using modern instruments that assure accurate results