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About Us
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What is a Diffuser?
Aier to Showcase at The BIG5 Dubai 2025, Bringing New Products and Industry Opportunities to Global Clients
What is an HVAC System?
Advanced Ventilation Supply & Exhaust Air Valve Solutions
25 Years of Excellence: Aier Company Sets New Standards in Ventilation Industry
What is the Difference between Air Vent, Air Diffuser and Air Louver, and How to Use Them?
What Is the Difference between Plastic Vents and Metal Vents?
Understanding Ceiling Diffusers: Critical Components for Efficient Air Distribution
Ningbo Aier Ventilation Equipment Co., Ltd. Makes a Stunning Debut at the 25th CRH China Refrigeration Exhibition, Leading the New Trend of Ventilation Accessories
Ventilation Accessories: What You Need to Know
Introducing the Stainless Steel Air Valve (SSAV)
High-Strength Ground Support provide Stable support and All weather Protection for extreme environments
Space Saving & Ultra Stable wall mounted AC Bracket for Versatile Installation
Q1 2025 Sales Strategy Review and Customer Bargaining Sharing Session
Aier Circular Diffuser CD – Smart Airflow Solution for Professionals
Nordic-Proof Comfort: The Unsung Hero Above Your AC Unit
Why Choose Stainless Steel Air Valves?
Working Principle and Application of Ventilation Air Valves
Characteristics of Round Swirl Diffuser
Empower Your Projects, Elevate Your Value: Introducing the New Professional-Grade Black Powder-Coated Floor-Mounted AC Bracket
What Are the Main Components of an HVAC System?
What Is a Diffuser in HVAC Systems?
What Are Backdraft Dampers
Air Jet Nozzle for HVAC Applications
How to Use Duct Hangers?
Black Sauna Air Vent: The Elegant Choice for Special Scenes
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AC Bracket
Bracket for A/C Outdoor Unit (AC-1 AC-2 AC-3)
Bracket for A/C Outdoor Unit (AHDF)
Bracket for A/C Outdoor Unit (AHDN)
Bracket for A/C Outdoor Unit (AH)
Bracket for A/C Outdoor Unit (ATO)
Bracket for A/C Outdoor Unit (ALO)
Bracket for A/C Outdoor Unit (AW-1 AW-2)
Bracket for A/C Outdoor Unit (AGSM-1 ASGM-2)
Bracket for A/C Outdoor Unit (AGS)
Bracket for A/C Outdoor Unit (AGN-1 AGN-2 AGN-3)
Bracket for A/C Outdoor Unit (AA-1 AA-2 AA-3 AA-4)
Bracket for A/C Outdoor Unit (AD-1 AD-2 AD-3 AD-4)
Bracket for A/C Outdoor Unit (ADC-1 ADC-2 ADC-3)
Bracket for A/C Outdoor Unit (AM-1 AM-2 AM-3)
Bracket for A/C Outdoor Unit (ACD-1 ACD-2 ACD-3)
Bracket for A/C Outdoor Unit (AI-1 AI-2 AI-3)
Bracket for A/C Outdoor Unit (ALN-1 ALN-2 ALN-3)
Bracket for A/C Outdoor Unit (ACF-1 ACF-2 ACF-3)
Bracket for A/C Outdoor Unit (ALF-1 ALF-2 ALF-3)
Iris Damper
IRIX Damper (IRIX)
Iris Damper (ID)
Backdraught Shutters (BDS)
Ventilation Air Valves
Mounting Frame without Sealing Ring-Nordic type (MFON)
Mounting Frame with Sealing Ring (MFS)
Mounting Frame with Sealing Ring-Nordic type (MFSN)
Mounting Frame without Sealing Ring (MFSH)
Mounting Frame (MF)
Square Type Casted Aluminium External Louver (SCAL)
External Grille (SEL)
Circular External Grille (CEL)
Gravitation Flow Grille(SFG)
Gravitation Flow Louver(SFL)
Metal Air Valve-Exhaust (EAV)
Metal Air Valve-Supply (SAV)
Metal Air Valve-Exhaust (AVE)
Metal Air Valve-Supply (AVS)
Stainless Steel Air Valve (SSAV)
Plastic Air Valve (PAV)
Metal Exhaust Air Valve (AEV)
Metal Supply Air Valve (ASV)
Metal Exhaust Air Valve (AVM)
Metal Supply Air Valve (AVN)
Stainless Steel Exhaust Air Valve (EAV/SS)
Stainless Steel Supply Air Valve (SAV/SS)
Stainless Steel Louver-A Type (SSL-A)
Stainless Steel Louver-B Type (SSL-B)
Stainless Steel External Louver (SSEL)
Stainless Steel External Louver (SSUL)
Round Stainless External Louver (SSRE)
Circular Stainless Steel External Louver (SSCE)
Aluminium External Louver (AEL)
Casting Type Aluminium External Louver (CAEL)
Sauna Exhaust Air Valve (AVM-S)
Sauna Supply Air Valve (AVN-S)
HVAC Diffusers
Multi-nozzle Ceiling Diffuser (SECD-F)
Egg Grate Grille(EGG)
Swirl Diffuser (SD-CA)
Perforated Diffuser (PD)
Swirl Diffuser (SD-CB)
Round Swirl Diffuser (RSD)
Swirl Diffuser (SW)
Swirl Diffuser (SD-B)
Ceiling Diffuser (CD)
Swirl Round Diffuser With Fixed Blades (SRD-A)
Swirl Round Diffuser With Adjustable Blades (SRD-B)
Circular Diffuser (CD)
Stamped Type 4-Way Diffuser (SD-S)
Welded Type 4-way Diffuser (SD-W)
Jet Nozzle (JD)
Ceiling Diffuser (SECD)
Access Doors
Curved Access Door with self-adhesive edge protection(CADS)
Flat Access Door with self-adhesive edge protection(FADS)
Curved Access Door (CAD)
Flat Access Door (FAD)
Maintenance Access Door (MCAD)
Maintenance Access Door-Flat (MFAD)
Rectangular Access Door (RDAD)
Tabbed Access Door (TAD)
Fire Rated Access Door (FRTB)
Ventilation Pipe Clamps
Ventilation Pipe Clamps Without Rubber (PCOR)
Ventilation Pipe Clamps With Rubber (PCWR)
Split Ring (SCOR)
Pied Support Terrasse (SDS)
Insulated Ventilation Duct Clamp (PCNR)
Non-Insulated Ventilation Duct Clamp (PCNI)
HVAC Fittings
Damper Regulator (DQS12)
Damper Regulator (MQS12)
Damper Regulator (DR-K)
Damper Regulator (DR-M)
Damper Regulator (DR-14)
Damper Regulator (DR-38)
Damper Regulator (DSC)
Nylon Quadrant (RG-90)
L-Holder With Rubber Vibration Isolator (LH)
Z-Holder With Rubber Vibration Isolator (ZH)
V-Holder With Vibration Isolator (VH)
R-Holder With Rubber Vibration Isolator (RH)
BRA-L Holder With Vibration Isolator (BRA-L)
BRA-Z Holder With Vibration Isolator (BRA-Z)
BRA-U Holder With Vibration Isolator (BRA-U)
BRA-T Holder Without Vibration Isolator (BRA-T)
Air Duct Corner
Air Corner Clamps
AC Accessories
A/C Roof Cover (ARC)
Fix-It Big Foot(VBF-T) (VBF250-T VB400F-T VBF450-T VBF600-T VBF1000-T)
Welded Bracket (AHJ-1 AHJ-2 AHJ-3 AHJ-4)
Welded Bracket (ADX-1 ADX-2)
Welded Bracket (ASL-1 ASL-2 ASL-3)
Bracket for A/C Outdoor Unit (AO-1 AO-2)
Anti Vibration Rubber Mounts(VAG)
Anti Vibration Rubber Mounts(VDH)
Anti Vibration Rubber Mounts(VS)
Anti Vibration Rubber Mounts(VSH)
Anti Vibration Rubber Mounts(VCH)
Anti Vibration Rubber Mounts(VWH)
Anti Vibration Rubber Mounts(VBH)
Sliding Brackets（APLN）
Anti Vibration Rubber Mounts(VSL)
Fix-It Rubber Foot(VBF)
Fix-It Rubber Foot(VSBF)
Customized Accessories
Aier Aluminum External Louver
Related HAVC Accessories Products
Bracket for A/C Outdoor Unit (AC-1 AC-2 AC-3)
Perforated Diffuser (PD)
BRA-L Holder With Vibration Isolator (BRA-L)
Stamped Type 4-Way Diffuser (SD-S)
Related HAVC Accessories Videos
Supply Air Valve
Flat Access Door
Al louver 2
News & Blog Update About Aier
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Nov 24, 2025
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Nov 20, 2025
Black Sauna Air Vent: The Elegant Choice for Special Scenes
Nov 18, 2025
Aier Obtains CWB Certification
Nov 14, 2025
Air Jet Nozzle for HVAC Applications
0086-574-62500178
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