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- Batteries
- Updated: Apr 15, 2026
Best Deep Cycle Battery: How to Choose the Right One for Your Needs
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Quiet Air Conditioners
In stock
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 deliveryDelivery on May 19–22
Limited stock
Costway 10k BTU 4-in-1 Portable Air Conditioner 350 sq ft (Black)
- TypePortable
- BTU Capacity10000 BTU
- Max. Coverage Area350 sq.ft.
Free deliveryDelivery on May 19–22
Limited stock
Costway 10k BTU 3-in-1 Portable Air Conditioner 350 sq ft (White)
- TypePortable
- BTU Capacity10000 BTU
- Max. Coverage Area350 sq.ft.
Free deliveryDelivery on May 19–22
In stock
Costway 10k BTU 3-in-1 Portable Air Conditioner 350 sq ft (Black)
- TypePortable
- BTU Capacity10000 BTU
- Max. Coverage Area450 sq.ft.
Free deliveryDelivery on May 19–22
In stock
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 deliveryDelivery on May 19–22
In stock
ROVSUN 9k BTU Mini Split Air Conditioner with Heat Pump (19 SEER2, 115V)
- TypeMini-Splits
- BTU Capacity9000 BTU
- Max. Coverage Area400 sq.ft.
- Tonnage0.75 Ton
- SEER219.0 SEER2
Free deliveryDelivery on May 19–22
In stock
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 deliveryDelivery on May 19–22
Limited stock
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 deliveryDelivery on May 19–22
In stock
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 deliveryDelivery on May 19–22
In stock
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 deliveryDelivery on May 19–22
Limited stock
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 deliveryDelivery on May 19–22
In stock
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 deliveryDelivery on May 19–22
In stock
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 deliveryDelivery on May 19–22
In stock
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 deliveryDelivery on May 19–22
In stock
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 deliveryDelivery on May 19–22
In stock
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 deliveryDelivery on May 19–22
In stock
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 deliveryDelivery on May 19–22
Limited stock
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 deliveryDelivery on May 19–22
Limited stock
ROVSUN 12k BTU Mini Split Air Conditioner with Heat Pump (21 SEER2, 115V, Black)
- TypeMini-Splits
- BTU Capacity12000 BTU
- Max. Coverage Area550 sq.ft.
- Tonnage1 Ton
- SEER221.0 SEER2
Free deliveryDelivery on May 19–22
In stock
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 deliveryDelivery on May 19–22
Limited stock
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 deliveryDelivery on May 19–22
Limited stock
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 deliveryDelivery on May 19–22
In stock
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 May 19–22
In stock
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 May 19–22
Limited stock
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 deliveryDelivery on May 19–22
Limited stock
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 May 19–22
Limited stock
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 May 19–22
Limited stock
Customer Choice
ROVSUN 18k BTU Mini Split Air Conditioner with Heat Pump (21 SEER2, 230V)
- TypeMini-Splits
- BTU Capacity18000 BTU
- Max. Coverage Area1000 sq.ft.
- Tonnage1.5 Ton
- SEER221.0 SEER2
Free deliveryDelivery on May 19–22
In stock
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 deliveryDelivery on May 19–22
In stock
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 deliveryDelivery on May 19–22
Limited stock
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 deliveryDelivery on May 19–22
Limited stock
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 deliveryDelivery on May 19–22
Limited stock
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 deliveryDelivery on May 19–22
In stock
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 deliveryDelivery on May 19–22
Limited stock
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 deliveryDelivery on May 19–22
Limited stock
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 deliveryDelivery on May 19–22
Limited stock
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 May 19–22
In stock
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 deliveryDelivery on May 19–22
Limited stock
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 deliveryDelivery on May 19–22
Limited stock
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 deliveryDelivery on May 19–22
Limited stock
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 May 19–22
Limited stock
HotSpot Energy ACDC12C 12k BTU Mini Split Air Conditioner with Heat Pump (22 SEER, Solar Hybrid)
- TypeMini-Splits
- BTU Capacity12000 BTU
- Max. Coverage Area750 sq.ft.
- Tonnage1 Ton
Delivery on May 15–20
Limited stock
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 deliveryDelivery on May 19–22
Limited stock
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 May 19–22
Limited stock
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 deliveryDelivery on May 19–22
Limited stock
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 deliveryDelivery on May 19–22
Limited stock
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 deliveryDelivery on May 19–22
Limited stock
HotSpot Energy ACDC18C 18k BTU Mini Split Air Conditioner with Heat Pump (22 SEER, Solar Hybrid)
- TypeMini-Splits
- BTU Capacity18000 BTU
- Max. Coverage Area1000 sq.ft.
- Tonnage1.5 Ton
Delivery on May 15–20
Limited stock
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 May 19–22
Limited stock
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 deliveryDelivery on May 19–22
Limited stock
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 deliveryDelivery on May 15–20
Limited stock
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 deliveryDelivery on May 15–20
Limited stock
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 deliveryDelivery on May 15–20
Limited stock
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 deliveryDelivery on May 15–20
Limited stock
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 deliveryDelivery on May 15–20
Limited stock
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 May 15–20
Limited stock
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 May 15–20
Limited stock
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 May 15–20
Limited stock
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 May 15–20
Limited stock
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 May 15–20
Limited stock
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 May 15–20
- 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.
Find Your Perfect Quiet Air Conditioner
Compare models, read reviews, and make an informed decision for your noise-sensitive space.
Shop Quiet AC Units- By: Anna Fadeeva
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