Quiet Air Conditioners

Customer Choice

Costway 10k BTU 4-in-1 Portable Air Conditioner 350 sq ft (White)

TypePortable
BTU Capacity10000 BTU
Max. Coverage Area350 sq.ft.

Free delivery

Delivery on Jun 05–10

Costway 10k BTU 4-in-1 Portable Air Conditioner 350 sq ft (Black)

TypePortable
BTU Capacity10000 BTU
Max. Coverage Area350 sq.ft.

Free delivery

Delivery on Jun 05–10

Costway 10k BTU 3-in-1 Portable Air Conditioner 350 sq ft (White)

TypePortable
BTU Capacity10000 BTU
Max. Coverage Area350 sq.ft.

Free delivery

Delivery on Jun 05–10

Costway 10k BTU 3-in-1 Portable Air Conditioner 350 sq ft (Black)

TypePortable
BTU Capacity10000 BTU
Max. Coverage Area450 sq.ft.

Free delivery

Delivery on Jun 05–10

Costway Blast 9k BTU Mini Split Air Conditioner with Heat Pump (17 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity9000 BTU
Max. Coverage Area450 sq.ft.
Tonnage0.75 Ton
SEER217.0 SEER2

Free delivery

Delivery on Jun 05–10

Costway GreyVolt 12k BTU Mini Split Air Conditioner with Heat Pump (21 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area750 sq.ft.
Tonnage1 Ton
SEER221.0 SEER2

Free delivery

Delivery on Jun 05–10

Costway Blast 9k BTU Mini Split Air Conditioner with Heat Pump (19 SEER2, 115V)

TypeMini-Splits
BTU Capacity9000 BTU
Max. Coverage Area450 sq.ft.
Tonnage0.75 Ton
SEER219.0 SEER2

Free delivery

Delivery on Jun 05–10

Costway Blast 12k BTU Mini Split Air Conditioner with Heat Pump (17 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area750 sq.ft.
Tonnage1 Ton
SEER217.0 SEER2

Free delivery

Delivery on Jun 05–10

Costway Blast 12k BTU Mini Split Air Conditioner (20 SEER2, 115V)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area750 sq.ft.
Tonnage1 Ton
SEER220.0 SEER2

Free delivery

Delivery on Jun 05–10

Costway Airtural 9100 BTU Mini Split Air Conditioner with Heat Pump (20.5 SEER2, 115V)

TypeMini-Splits
BTU Capacity9100 BTU
Max. Coverage Area450 sq.ft.
Tonnage0.75 Ton
SEER220.5 SEER2

Free delivery

Delivery on Jun 05–10

ROVSUN 11.5k BTU Mini Split Air Conditioner with Heat Pump (17 SEER2, 115V)

TypeMini-Splits
BTU Capacity11500 BTU
Max. Coverage Area550 sq.ft.
Tonnage1 Ton
SEER217.0 SEER2

Free delivery

Delivery on Jun 05–10

ROVSUN 11.5k BTU Mini Split Air Conditioner with Heat Pump (17 SEER2, 230V)

TypeMini-Splits
BTU Capacity11500 BTU
Max. Coverage Area550 sq.ft.
Tonnage1 Ton
SEER217.0 SEER2

Free delivery

Delivery on Jun 05–10

Costway Airtural 12k BTU Mini Split Air Conditioner with Heat Pump (21 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area750 sq.ft.
Tonnage1 Ton
SEER221.0 SEER2

Free delivery

Delivery on Jun 05–10

ROVSUN 9k BTU Mini Split Air Conditioner with Heat Pump (19 SEER2, 115V, Black)

TypeMini-Splits
BTU Capacity9000 BTU
Max. Coverage Area400 sq.ft.
Tonnage0.75 Ton
SEER219.0 SEER2

Free delivery

Delivery on Jun 05–10

Costway Airtural 12k BTU Mini Split Air Conditioner with Heat Pump (22 SEER2, 115V)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area750 sq.ft.
Tonnage1 Ton
SEER222.0 SEER2

Free delivery

Delivery on Jun 05–10

BHI 12k BTU Mini Split Air Conditioner with Heat Pump (17 SEER2, 115V)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area600 sq.ft.
Tonnage1 Ton
SEER217.0 SEER2

Delivery on Jun 05–10

ROVSUN 9k BTU Mini Split Air Conditioner with Heat Pump (24 SEER2, 115V)

TypeMini-Splits
BTU Capacity9000 BTU
Max. Coverage Area400 sq.ft.
Tonnage0.75 Ton
SEER224.0 SEER2

Free delivery

Delivery on Jun 05–10

ROVSUN 12k BTU Mini Split Air Conditioner with Heat Pump (21 SEER2, 230V)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area550 sq.ft.
Tonnage1 Ton
SEER221.0 SEER2

Free delivery

Delivery on Jun 05–10

BHI 12k BTU Mini Split Air Conditioner with Heat Pump (17 SEER2, 115V, Wi-Fi Control)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area600 sq.ft.
Tonnage1 Ton
SEER217.0 SEER2

Delivery on Jun 05–10

BHI 12k BTU Mini Split Air Conditioner with Heat Pump (20.5 SEER2, 115V)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area600 sq.ft.
Tonnage1 Ton
SEER220.5 SEER2

Delivery on Jun 05–10

ROVSUN 12k BTU Mini Split Air Conditioner with Heat Pump (19 SEER2, 115V, Black)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area550 sq.ft.
Tonnage1 Ton
SEER219.0 SEER2

Free delivery

Delivery on Jun 05–10

ROVSUN 12k BTU Mini Split Air Conditioner with Heat Pump (24 SEER2, 230V)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area550 sq.ft.
Tonnage1 Ton
SEER224.0 SEER2

Free delivery

Delivery on Jun 05–10

ROVSUN 12k BTU Mini Split Air Conditioner with Heat Pump (23 SEER2, 115V)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area550 sq.ft.
Tonnage1 Ton
SEER223.0 SEER2

Free delivery

Delivery on Jun 05–10

Customer Choice

ROVSUN 12k BTU Mini Split Air Conditioner with Heat Pump (21 SEER2, 115V)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area550 sq.ft.
Tonnage1 Ton
SEER221.0 SEER2

Free delivery

Delivery on Jun 05–10

BHI 12k BTU Mini Split Air Conditioner with Heat Pump (20.5 SEER2, 115V, Wi-Fi)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area600 sq.ft.
Tonnage1 Ton
SEER220.5 SEER2

Delivery on Jun 05–10

Costway Blast 18k BTU Mini Split Air Conditioner with Heat Pump (19 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity18000 BTU
Max. Coverage Area1250 sq.ft.
Tonnage1.5 Ton
SEER219.0 SEER2

Free delivery

Delivery on Jun 05–10

Costway GreyVolt 18k BTU Mini Split Air Conditioner with Heat Pump (21 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity18000 BTU
Max. Coverage Area1250 sq.ft.
Tonnage1.5 Ton
SEER221.0 SEER2

Free delivery

Delivery on Jun 05–10

Costway SEERXtreme 12k BTU Mini Split Air Conditioner with Heat Pump (24 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area750 sq.ft.
Tonnage1 Ton
SEER224.0 SEER2

Free delivery

Delivery on Jun 05–10

ROVSUN 17k BTU Mini Split Air Conditioner with Heat Pump (17 SEER2, 230V)

TypeMini-Splits
BTU Capacity17000 BTU
Max. Coverage Area1000 sq.ft.
Tonnage1.4 Ton
SEER217.0 SEER2

Free delivery

Delivery on Jun 05–10

Costway Airtural 18k BTU Mini Split Air Conditioner with Heat Pump (21 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity18000 BTU
Max. Coverage Area1250 sq.ft.
Tonnage1.5 Ton
SEER221.0 SEER2

Free delivery

Delivery on Jun 05–10

ROVSUN 18k BTU Mini Split Air Conditioner with Heat Pump (23 SEER2, 230V)

TypeMini-Splits
BTU Capacity18000 BTU
Max. Coverage Area1000 sq.ft.
Tonnage1.5 Ton
SEER223.0 SEER2

Free delivery

Delivery on Jun 05–10

Costway Blast 24k BTU Mini Split Air Conditioner with Heat Pump (18.5 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity24000 BTU
Max. Coverage Area1500 sq.ft.
Tonnage2 Ton
SEER218.5 SEER2

Free delivery

Delivery on Jun 05–10

Costway SEERXtreme 18k BTU Mini Split Air Conditioner with Heat Pump (25 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity18000 BTU
Max. Coverage Area1250 sq.ft.
Tonnage1.5 Ton
SEER225.0 SEER2

Free delivery

Delivery on Jun 05–10

BHI 24k BTU Mini Split Air Conditioner with Heat Pump (17 SEER2, 230V)

TypeMini-Splits
BTU Capacity24000 BTU
Max. Coverage Area1200 sq.ft.
Tonnage2 Ton
SEER217.0 SEER2

Delivery on Jun 05–10

Costway Airtural 24k BTU Mini Split Air Conditioner with Heat Pump (21 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity24000 BTU
Max. Coverage Area1500 sq.ft.
Tonnage2 Ton
SEER221.0 SEER2

Free delivery

Delivery on Jun 05–10

ROVSUN 24k BTU Mini Split Air Conditioner with Heat Pump (21 SEER2, 230V)

TypeMini-Splits
BTU Capacity24000 BTU
Max. Coverage Area1500 sq.ft.
Tonnage2 Ton
SEER221.0 SEER2

Free delivery

Delivery on Jun 05–10

Costway Airtural 24k BTU Mini Split Air Conditioner with Heat Pump (21 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity24000 BTU
Max. Coverage Area1500 sq.ft.
Tonnage2 Ton
SEER221.0 SEER2

Free delivery

Delivery on Jun 05–10

Costway GreyVolt 24k BTU Mini Split Air Conditioner with Heat Pump (21 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity24000 BTU
Max. Coverage Area1500 sq.ft.
Tonnage2 Ton
SEER221.0 SEER2

Free delivery

Delivery on Jun 05–10

BHI 24k BTU Mini Split Air Conditioner with Heat Pump (17 SEER2, 230V, Wi-Fi)

TypeMini-Splits
BTU Capacity24000 BTU
Max. Coverage Area1200 sq.ft.
Tonnage2 Ton
SEER217.0 SEER2

Delivery on Jun 05–10

HotSpot Energy ACDC12C 12k BTU Mini Split Air Conditioner with Heat Pump (22 SEER, Solar Hybrid)

TypeSolar
BTU Capacity12000 BTU
Max. Coverage Area750 sq.ft.
Tonnage1 Ton

Delivery on Jun 03–08

MRCOOL EasyPro 18k BTU Mini Split Air Conditioner with Heat Pump (20 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity18000 BTU
Max. Coverage Area800 sq.ft.
Tonnage1.5 Ton
SEER220.0 SEER2

Free delivery

Delivery on Jun 03–08

BHI 36k BTU Mini Split Air Conditioner with Heat Pump (17 SEER2, 230V)

TypeMini-Splits
BTU Capacity36000 BTU
Max. Coverage Area1800 sq.ft.
Tonnage3 Ton
SEER217.0 SEER2

Delivery on Jun 05–10

HotSpot Energy ACDC18C 18k BTU Mini Split Air Conditioner with Heat Pump (22 SEER, Solar Hybrid)

TypeSolar
BTU Capacity18000 BTU
Max. Coverage Area1000 sq.ft.
Tonnage1.5 Ton

Delivery on Jun 03–08

BHI 36k BTU Mini Split Air Conditioner with Heat Pump (17 SEER2, 230V, Wi-Fi)

TypeMini-Splits
BTU Capacity36000 BTU
Max. Coverage Area1800 sq.ft.
Tonnage3 Ton
SEER217.0 SEER2

Delivery on Jun 05–10

ROVSUN 28k BTU 2-Zone Mini Split Air Conditioner with Heat Pump (9k+12k, 20 SEER2, 230V)

TypeMini-Splits
BTU Capacity28000 BTU
Max. Coverage Area950 sq.ft.
Tonnage2.3 Ton
SEER220.0 SEER2

Free delivery

Delivery on Jun 05–10

ROVSUN 28k BTU 2-Zone Mini Split Air Conditioner with Heat Pump (12k+12k, 20 SEER2, 230V)

TypeMini-Splits
BTU Capacity28000 BTU
Max. Coverage Area950 sq.ft.
Tonnage2.3 Ton
SEER220.0 SEER2

Free delivery

Delivery on Jun 05–10

MRCOOL DIY 9k BTU Mini Split Air Conditioner with Heat Pump (20.2 SEER2, 115V)

TypeMini-Splits
BTU Capacity9000 BTU
Max. Coverage Area400 sq.ft.
Tonnage0.75 Ton
SEER223.6 SEER2

Free delivery

Delivery on Jun 03–08

MRCOOL EasyPro 24k BTU Mini Split Air Conditioner with Heat Pump (18.9 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity24000 BTU
Max. Coverage Area1050 sq.ft.
Tonnage2 Ton
SEER218.9 SEER2

Free delivery

Delivery on Jun 03–08

MRCOOL DIY 12k BTU Mini Split Air Conditioner with Heat Pump (19.5 SEER2, 115V)

TypeMini-Splits
BTU Capacity12000 BTU
Max. Coverage Area550 sq.ft.
Tonnage1 Ton
SEER223.5 SEER2

Free delivery

Delivery on Jun 03–08

ROVSUN 28k BTU 2-Zone Mini Split Air Conditioner with Heat Pump (9k+18k, 20 SEER2, 230V)

TypeMini-Splits
BTU Capacity28000 BTU
Max. Coverage Area950 sq.ft.
Tonnage2.3 Ton
SEER220.0 SEER2

Free delivery

Delivery on Jun 05–10

ROVSUN 28k BTU 2-Zone Mini Split Air Conditioner with Heat Pump (12k+18k, 20 SEER2, 230V)

TypeMini-Splits
BTU Capacity28000 BTU
Max. Coverage Area950 sq.ft.
Tonnage2.3 Ton
SEER220.0 SEER2

Free delivery

Delivery on Jun 05–10

ROVSUN 28k BTU 2-Zone Mini Split Air Conditioner with Heat Pump (18k+18k, 20 SEER2, 230V)

TypeMini-Splits
BTU Capacity28000 BTU
Max. Coverage Area950 sq.ft.
Tonnage2.3 Ton
SEER220.0 SEER2

Free delivery

Delivery on Jun 05–10

MRCOOL DIY 18k BTU Mini Split Air Conditioner with Heat Pump (20 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity18000 BTU
Max. Coverage Area800 sq.ft.
Tonnage1.5 Ton
SEER222.5 SEER2

Free delivery

Delivery on Jun 03–08

MRCOOL DIY 24k BTU Mini Split Air Conditioner with Heat Pump (18.9 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity24000 BTU
Max. Coverage Area1050 sq.ft.
Tonnage2 Ton
SEER222.7 SEER2

Free delivery

Delivery on Jun 03–08

MRCOOL DIY 36k BTU Mini Split Air Conditioner with Heat Pump (18 SEER2, 208-230V)

TypeMini-Splits
BTU Capacity36000 BTU
Max. Coverage Area1550 sq.ft.
Tonnage3 Ton
SEER218.0 SEER2

Free delivery

Delivery on Jun 03–08

MRCOOL Universal 24k BTU 2-Ton 18.6 SEER2 Ducted Central Air Conditioner with Heat Pump

TypeCentral Systems
BTU Capacity24000 BTU
Tonnage2 Ton
SEER218.6 SEER2

Delivery on Jun 03–08

MRCOOL Hyper Heat 2nd Gen 30k BTU 2.5-Ton 16.8 SEER2 Ducted Central Air Conditioner with Heat Pump

TypeCentral Systems
BTU Capacity30000 BTU
Tonnage2.5 Ton
SEER216.8 SEER2

Delivery on Jun 03–08

MRCOOL Universal 30k BTU 2.5-Ton 17.2 SEER2 Ducted Central Air Conditioner with Heat Pump

TypeCentral Systems
BTU Capacity30000 BTU
Tonnage2.5 Ton
SEER217.2 SEER2

Delivery on Jun 03–08

MRCOOL Universal 36k BTU 3-Ton 18 SEER2 Ducted Central Air Conditioner with Heat Pump

TypeCentral Systems
BTU Capacity36000 BTU
Tonnage3 Ton
SEER218.0 SEER2

Delivery on Jun 03–08

MRCOOL Hyper Heat 2nd Gen 48k BTU 4-Ton 16.5 SEER2 Ducted Central Air Conditioner with Heat Pump

TypeCentral Systems
BTU Capacity48000 BTU
Tonnage4 Ton
SEER216.5 SEER2

Delivery on Jun 03–08

MRCOOL Universal 48k BTU 4-Ton 17.5 SEER2 Ducted Central Air Conditioner with Heat Pump

TypeCentral Systems
BTU Capacity48000 BTU
Tonnage4 Ton
SEER217.5 SEER2

Delivery on Jun 03–08

MRCOOL Universal 60k BTU 5-Ton 17.5 SEER2 Ducted Central Air Conditioner with Heat Pump

TypeCentral Systems
BTU Capacity60000 BTU
Tonnage5 Ton
SEER217.5 SEER2

Delivery on Jun 03–08

Overview
Articles

Quiet Air Conditioners For Sale

🔇Traditional air conditioners can disrupt sleep and concentration with persistent mechanical noise. Understanding decibel ratings and compressor technologies is crucial for selecting units suitable for bedrooms, nurseries, and home offices.

What Makes an Air Conditioner Truly Quiet?

Sound levels below 50 decibels distinguish quiet units from standard models. Modern quiet ACs achieve this through variable-speed compressors, optimized fan designs, and enhanced insulation that minimizes vibration. Real-world operation typically produces 3-7 decibels higher than advertised specifications during peak cooling.

Which Type of Quiet Air Conditioner Works Best for Your Space?

🪟Window Units

Excel for spaces up to 400 square feet, operating at 42-46 decibels with compressor components positioned outside.

📱Portable Units

Offer mobility at 48-52 decibels but dual-hose designs reduce noise compared to single-hose models.

❄️Mini-Split Systems

Deliver the quietest performance at 19-26 decibels by locating compressors outdoors. Require professional installation but provide whisper-quiet operation.

How Do Decibel Ratings Translate to Real-World Noise Levels?

Each 10-decibel increase represents a perceived doubling of loudness on the logarithmic decibel scale.

Decibel Range	Comparable Sound	Suitability
35-40 dB	Library whisper	Excellent for nurseries
41-45 dB	Quiet office	Good for bedrooms
46-50 dB	Moderate rainfall	Acceptable for living areas
51 dB	Normal conversation	Unsuitable for quiet spaces

Inverter technology enables lower ratings by varying compressor speed continuously, eliminating jarring startup noise cycles.

What Features Significantly Reduce Air Conditioner Noise?

Variable-speed compressors adjust cooling continuously rather than cycling on/off, eliminating startup noise spikes while operating 40-60% quieter than conventional models. Advanced fan blade designs using computational fluid dynamics minimize turbulence and whooshing sounds. Multi-layer insulation systems absorb vibrations and prevent sound transmission through unit housing.

How Can Installation Affect Your Air Conditioner's Noise Level?

Proper installation dramatically influences noise levels regardless of specifications. Secure mounting with rubber gaskets prevents vibration transmission into walls and windows. Position portable units away from hard surfaces that reflect sound, using carpet or rubber pads to reduce floor vibration transmission.

Expert Tips for Maintaining Quiet Operation

HVAC Specialist

Filter Maintenance Prevents Noise Escalation: Clean filters monthly during peak usage. Clogged filters force harder operation, increasing noise by 5-8 decibels while reducing cooling efficiency by 15%.

Mitsubishi Electric

Annual Professional Service Preserves Performance: Professional maintenance includes motor lubrication, refrigerant checks, and hardware tightening. This $100-150 investment prevents noise issues from worsening over time.

Comparing Top Quiet Air Conditioner Models

Model	Type	Capacity	Noise Level	Key Features
MRCOOL DIY 12k BTU	Mini-split	12,000 BTU	19 dB	DIY installation, ultra-quiet
Frigidaire Gallery GHWW083WB1	Window	8,000 BTU	42 dB	Sleep mode, variable fan
LG LW8017ERSM	Window	8,000 BTU	44 dB	Dual inverter compressor
Whynter ARC-14S	Portable	14,000 BTU	48 dB	Dual-hose, auto-drain
Mitsubishi MSZ-GL09NA	Mini-split	9,000 BTU	21 dB	Ultra-quiet operation

⭐The MRCOOL DIY series stands out for offering professional-grade mini-split performance with user-friendly installation, making ultra-quiet cooling accessible without requiring HVAC technician services.

When Should You Choose Professional Installation?

Mini-split systems require professional installation for refrigerant lines and electrical connections. While DIY works for window units, professional installation ($200-500) ensures warranty validity and optimal performance.

Higher efficiency units (SEER ratings above 12) generally incorporate variable-speed technology that reduces both energy consumption and noise. The investment in truly quiet air conditioning delivers improved sleep quality and enhanced productivity in noise-sensitive environments.