Duct Blasters

Aeroseal HomeSeal Connect Duct Sealing System

Aeroseal LLC

6.7 - Good

Patented aerosol duct sealing system that pressurizes and seals leaks from inside, closing up to 95% of duct leakage.

Energy Conservatory DG-1000 Pressure and Flow Gauge

The Energy Conservatory

7.0 - Excellent

High-resolution touchscreen digital gauge with Cruise Control for automated pressure testing with Minneapolis Blower Door and Duct Blaster systems.

Kanomax DALT 6900 Duct Air Leakage Tester

Kanomax

6.0 - Good

Automated commercial duct leakage tester with HD touchscreen, SMACNA compliance, and USB data export for large HVAC systems.

Minneapolis Blower Door Model 3 System

The Energy Conservatory

7.0 - Excellent

Industry-standard blower door system with DG-1000 gauge and Cruise Control for residential building envelope airtightness testing.

Minneapolis Duct Blaster System (with DG-1000)

The Energy Conservatory (TEC)

6.8 - Good

The de facto standard for HVAC duct airtightness testing used by raters, contractors, and code inspectors; certified to ASHRAE 152, IECC, and RESNET.

Oriflow Cobra Duct Leakage Tester

Oriflow

5.6 - Good

The most widely used duct leakage tester in the U.S., with variable speed control and quick-change orifice plates.

Retrotec 300 Series DucTester System

Retrotec

6.4 - Good

Competitive alternative to Minneapolis Duct Blaster with flexible duct attachment, calibrated to ASHRAE, IECC, and RESNET standards. Valued for portability.

Retrotec 6100 High Flow Blower Door System

Retrotec

6.8 - Good

High-power blower door delivering up to 8,000 CFM for testing leaky or large commercial buildings, with 9 flow ranges for super-tight to super-leaky enclosures.

Sensing Precision ALF 150 Duct Leakage Tester

Sensing Precision

5.5 - Good

Lightweight 20 kg self-contained duct leakage tester with PID closed-loop control, Bluetooth, and SMACNA/DW143 compliance.