Ventilation
AC Infinity T4 vs VIVOSUN Inline Fan
Premium vs budget inline fan comparison for grow tent ventilation
Our Pick:AC Infinity CLOUDLINE T4— The whisper-quiet operation and smart temperature control justify the premium for anyone living with their grow
The inline fan decision usually comes down to one question: How much does noise matter? The VIVOSUN gets air moving for $30, while the AC Infinity T4 does it quietly with smart features for $110. Let's see when each makes sense.
VIVOSUN 4 Inch Inline Fan
4.3
$29.99
Garage or basement grows where noise doesn't matter
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AC Infinity CLOUDLINE T4
4.8
$109.99
Bedroom/closet grows or anywhere noise matters
Check Price on AmazonSpecifications Comparison
| Specification | VIVOSUN 4" | AC Infinity T4 |
|---|---|---|
| Airflow (CFM) | 195 CFM | 205 CFM |
| Noise Level | 45 dB | 25 dB |
| Speed Control | On/Off only | 10-speed PWM |
| Motor Type | Standard AC motor | EC motor (efficient) |
| Smart Features | None | Temp/humidity triggers |
| Build Quality | Plastic housing | Metal housing |
| Warranty | 1 year | 2 years |
| Weight | 2.8 lbs | 4.2 lbs |
Pros & Cons
VIVOSUN 4"
Pros
- Very affordable
- Gets the job done
- Easy to install
- Moves adequate air
Cons
- Loud (45 dB)
- No speed control included
- No temperature automation
- Lower build quality
- Vibration issues possible
AC Infinity T4
Pros
- Whisper quiet (25 dB)
- Smart temperature control
- Variable speed (1-10)
- Energy efficient EC motor
- Excellent build quality
- Set it and forget it
Cons
- 3.5x more expensive
- Heavier
- Learning curve for controller
The Verdict
If your grow is in a garage, basement, or anywhere noise doesn't matter, the VIVOSUN 4" fan works fine and saves you $80. But if your tent is in a bedroom, closet, or living space—or if you just value peace and automation—the AC Infinity T4 is absolutely worth it. The 25 dB whisper-quiet operation and "set it and forget it" temperature control make it the standard recommendation for most home growers.
VIVOSUN 4"
$29.99
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AC Infinity T4
$109.99
Buy Now