A strong 8 in EC fan for large tents at a mid-range price, with excellent rated airflow per watt.
Amazon $119.99The VIVOSUN AeroZesh T8 is the better inline duct fan overall, rated 3.8 to 2.9. The VIVOSUN AeroZesh T8 leads on airflow and controls. The TerraBloom 8 in Inline Fan TB-MFIF-8 wins on value. The TerraBloom 8 in Inline Fan TB-MFIF-8 costs $30 less ($89.99 vs $119.99).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
A low-cost 8 in fan for a large tent or attic. Its power draw and noise are not published.
Amazon $89.99Which should you buy?
- Choose the VIVOSUN AeroZesh T8 for airflow (832 CFM through 8 in duct vs 735 CFM through 8 in duct) and controls (speed controller included, timer or cycle modes vs speed controller included).
- Choose the TerraBloom 8 in Inline Fan TB-MFIF-8 for value ($12.24 per 100 CFM ($89.99, 735 CFM) vs $14.42 per 100 CFM ($119.99, 832 CFM)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 8 in and up inline duct fan; a clear win is highlighted. How we rank explains each one.
| Factor weight | VIVOSUN AeroZesh T8 | TerraBloom 8 in Inline Fan TB-MFIF-8 |
|---|---|---|
| Overall rating | 3.8/5 | 2.9/5 |
| Value 25% | 67 $14.42 per 100 CFM ($119.99, 832 CFM) | 82 $12.24 per 100 CFM ($89.99, 735 CFM) |
| Efficiency 25% | 90 11.1 CFM per watt (832 CFM, 75 W), from a power figure labeled average | 0 power draw not published, scored as the lowest |
| Airflow 15% | 83 832 CFM through 8 in duct | 59 735 CFM through 8 in duct |
| Noise 15% | 43 45 dBA at full speed | 50 full-speed noise not published (neutral score used) |
| Controls 10% | 55 speed controller included, timer or cycle modes | 40 speed controller included |
| Warranty 10% | 25 2-year warranty | 0 warranty not published, scored as none |
Specifications
| VIVOSUN AeroZesh T8 | TerraBloom 8 in Inline Fan TB-MFIF-8 | |
|---|---|---|
| Performance | ||
| Duct size | 8 in | 8 in |
| Rated airflow | 832 CFM | 735 CFM |
| Power at full speed | 75 W | - |
| Power figure | Labeled average | - |
| Airflow per watt | 11.1 CFM/W | - |
| Price per 100 CFM | $14.42 | $12.24 |
| Noise at full speed | 45 dBA | - |
| Top speed | 3,250 RPM | - |
| Controls | ||
| Motor | EC | - |
| Controller | 10-speed controller with cycle modes | Built-in speed controller |
| Speeds | 10 | Stepless |
| Temperature and humidity control | No | No |
| Phone app | No | No |
| Timer or cycle modes | Yes | No |
| Build | ||
| Housing | Plastic | - |
| Ingress rating | IP44 | - |
| Voltage | 110-240 V | - |
| Warranty | 2 years | - |
