AirScape Ventura 5300
A ten-speed ducted fan for a large home in a mild climate; the uninsulated door makes it a poor fit where winters are cold.
HVACQuick $1,799$1,799
The AirScape Ventura 5300 is the better whole house fan overall, rated 2.6 to 2.5. The AirScape Ventura 5300 leads on efficiency.
AirScape Ventura X9
A ten-speed ducted fan for a large home in a mild climate; the uninsulated door makes it a poor fit where winters are cold.
HVACQuick $1,799$1,799
Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the AirScape Ventura 5300 for efficiency (6.1 CFM per watt vs 5.6 CFM per watt).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every over 5,000 CFM whole house fan; a clear win is highlighted. How we rank explains each one.
| Factor weight | AirScape Ventura 5300 | AirScape Ventura X9 |
|---|---|---|
| Overall rating | 2.6/5 | 2.5/5 |
| Value 30% | 72 $327.27 per 1,000 CFM ($1,799, 5,497 CFM) | 68 $345.17 per 1,000 CFM ($1,799, 5,212 CFM) |
| Efficiency 20% | 18 6.1 CFM per watt | 10 5.6 CFM per watt |
| Noise 15% | 7 68 dBA at high speed | 7 68 dBA at high speed |
| Damper 10% | 0 uninsulated louver | 0 uninsulated louver |
| Warranty 25% | 22 3-year warranty on the motor | 22 3-year warranty on the motor |
Specifications
| AirScape Ventura 5300 | AirScape Ventura X9 | |
|---|---|---|
| Airflow | ||
| Airflow, high speed | 5,497 CFM | 5,212 CFM |
| Power, high speed | 902 W | 925 W |
| Efficiency | 6.1 CFM/W | 5.6 CFM/W |
| Speeds | 10 | 10 |
| Noise | 68 dBA | 68 dBA |
| Install | ||
| Mount | Ducted | Ducted |
| Damper | Uninsulated | Uninsulated |
| Ceiling opening | 22.5 x 26.5 in | 14.5 x 36 in |
| Attic vent area needed | 7.1 sq ft | 7.1 sq ft |
| Voltage | 120 V | 120 V |
| Remote or wall control | Yes | Yes |
| Warranty | ||
| Warranty | 3 years | 3 years |