The RPB cool air tube (part 4000-01) cools the supplied breathing air going into your RPB Nova 3 or Nova 2000 blast helmet by up to 32°F (18°C). It mounts on a webbed belt, and the built-in airflow regulator lets the operator adjust the cooling, keeping blasters alert and productive on hot job sites and in enclosed blast rooms.
Cool air tube RPB MFG # 4000-01 fits Nova 2000 and Nova 3 respirator helmets. The cool air tube is able to cool the incoming breathable air to the helmet by as much as 32 degrees Fahrenheit. That’s a huge deal when it’s 100 degrees and sunny out there. Treat yourself to some AC!
OEM#:
- 4000-01
Blue Dog Blasting SKU#:
- RPB-4000-01
Want it as a complete kit? The RPB Nova 3 blast helmet is available with the cool air tube already included (NV3-703-50).
RPB Cool Air Tube vs. Hot Air Tube vs. C40
| RPB Hot Air Tube | RPB Cool Air Tube | RPB C40 Dual Climate Control | |
|---|---|---|---|
| Part # | 4000-20 | 4000-01 | C40 |
| Function | Warms air up to 30°F (17°C) | Cools air up to 32°F (18°C) | Heats or cools in one unit |
| Best for | Winter and cold-climate blasting | Summer, hot shops and blast rooms | Year-round crews and changing conditions |
| Price | $215.87 | $182.63 | $526.81 |
All three work with the RPB Nova 3 blast helmet.
RPB Cool Air Tube Specifications
| Part number | RPB 4000-01 |
| Temperature change | Up to 32°F / 18°C cooler |
| Adjustment | Airflow regulator |
| Mounting | Webbed belt |
| Material | Non-toxic engineering plastic |
| Service | Disassembles for cleaning; all parts replaceable |
| Compatible helmets | RPB Nova 3, Nova 2000 |
| Usage note | Not for use when ambient temperature is below 65°F (21°C) |
Frequently Asked Questions
How much does the RPB cool air tube cool the air?
Up to 32°F (18°C) below your supply air temperature, adjustable with the airflow regulator.
When shouldn’t I use the cool air tube?
RPB says not to use it when the ambient temperature is below 65°F (21°C). In cold weather, switch to the RPB hot air tube or the C40.
Which helmets does the RPB cool air tube fit?
The RPB Nova 3 and Nova 2000.
Should I get the cool air tube or the C40?
If you mainly blast in the heat, the RPB cool air tube costs less. If your crew works through both summer and winter, the C40 heats and cools in one unit.
Can I clean or rebuild it?
Yes. It disassembles for cleaning, and every part is replaceable.
Is the cool air tube NIOSH approved?
NIOSH certifies the complete respirator assembly, not individual parts. Use it only as part of an approved RPB Nova assembly.
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