Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

BestAir(R) Humidifier Refresh Plus Vitamin C: Water Treatment, 394WU4 - Cleaning Chemicals for Humidifiers
BESTAIRCleaning Chemicals for Humidifiers

BestAir(R) Humidifier Refresh Plus Vitamin C: Water Treatment, 394WU4

The BestAir(R) Humidifier Refresh Plus Vitamin C is a water treatment product from BESTAIR, available in a 32 oz container (MPN RFC-PDQ-4). It is designed for use in humidifiers as a cleaning chemical. The product is…

SKU 3G-OTH-60247

Brand
BESTAIR
Item
BestAir(R) Humidifier Refresh Plus Vitamin C: Water Treatment, 394WU4, 32 oz Container Size (MPN RFC-PDQ-4). Key specifications — Compatible Grainger Part Number: 394WU4; Product Type: Water Treatment; Brand: BESTAIR.
Category
Cleaning Chemicals for Humidifiers
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

BESTAIR
Manufacturer Part Number
RFC-PDQ-4
Type
394WU4
Product Type
Water Treatment
Container Size
32 oz
Compatible Grainger Part Number
394WU4
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

BESTAIR Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The BestAir(R) Humidifier Refresh Plus Vitamin C is a water treatment product from BESTAIR, available in a 32 oz container (MPN RFC-PDQ-4). It is designed for use in humidifiers as a cleaning chemical. The product is compatible with Grainger Part Number 394WU4.

Frequently Asked Questions

What is BestAir Humidifier Refresh Plus Vitamin C used for?

BestAir Humidifier Refresh Plus Vitamin C is a water treatment product designed to clean and freshen humidifiers. It helps reduce mineral buildup and odors, improving air quality in residential or light commercial environments. This 32 oz container (MPN RFC-PDQ-4) is a cleaning chemical from BESTAIR.

What are the specifications of BestAir Humidifier Refresh Plus Vitamin C?

The BestAir Humidifier Refresh Plus Vitamin C has a 32 oz container size, manufacturer part number RFC-PDQ-4, and is compatible with Grainger part number 394WU4. It is a water treatment product from the brand BESTAIR, used as a cleaning chemical for humidifiers.

Where to buy BestAir Humidifier Refresh Plus Vitamin C worldwide?

You can source BestAir Humidifier Refresh Plus Vitamin C through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us to order the 32 oz container (MPN RFC-PDQ-4) for your humidifier maintenance needs.

How to use BestAir Humidifier Refresh Plus Vitamin C in a humidifier?

Add the recommended amount of BestAir Humidifier Refresh Plus Vitamin C to the humidifier water tank according to the manufacturer's instructions. This BESTAIR water treatment helps reduce scale and freshen the unit. Always follow your humidifier's manual for proper cleaning intervals and safety precautions.

Used in

Common applications for BESTAIR
Residential HVAC maintenance — BESTAIR humidistat HG050-PDQ-4 for humidity control in forced-air systems
Commercial building humidity management — BESTAIR wick model ES12-2 for evaporative humidifiers in office HVAC
Industrial process air quality — BESTAIR algae inhibitor 3BT-PDQ-6 for water treatment in manufacturing facility humidifiers
Data center environmental control — BESTAIR wick D18 for precision humidifiers maintaining 40-60% RH
Pharmaceutical storage — BESTAIR wick CB43 for humidifiers in temperature-controlled warehouses
Textile mill humidity regulation — BESTAIR wick CB41 for evaporative systems preventing fiber brittleness

BESTAIR Products

3G Electric supplies BESTAIR cleaning chemicals for humidifiers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Similar products

Matched by specification & description
Algae and Bacteria Inhibitor/Water Treatment: Algae and Bacteria Inhibitor/Water Treatment, Portable (MPN 246-PDQ-6). Key specifications — Product Type: Algae and Bacteria Inhibitor/Water Treatment; Brand: BESTAIR PRO.
BESTAIR PRO
Algae and Bacteria Inhibitor/Water Treatment: Algae and Bacteria Inhibitor/Water Treatment, Portable (MPN 246-PDQ-6). Key specifications — Product Type: Algae and Bacteria Inhibitor/Water Treatment; Brand: BESTAIR PRO.
BestAir Humidistat Humidity Monitor - Hygrometer: Onboard Control, 394WU5, HG050-PDQ-4. Key specifications — Compatible Grainger Part Number: 394WU5; Compatible Manufacturer Model Number: HG050-PDQ-4; Product Type: Onboard Control; Brand: BESTAIR.
BESTAIR
BestAir Humidistat Humidity Monitor - Hygrometer: Onboard Control, 394WU5, HG050-PDQ-4. Key specifications — Compatible Grainger Part Number: 394WU5; Compatible Manufacturer Model Number: HG050-PDQ-4; Product Type: Onboard Control; Brand: BESTAIR.
BESTAIR Humidifier Wick: CB43. Key specifications — Manufacturer Part Number: CB43.
BESTAIR
BESTAIR Humidifier Wick: CB43. Key specifications — Manufacturer Part Number: CB43.
BESTAIR Humidifier Wick: CB41. Key specifications — Manufacturer Part Number: CB41.
BESTAIR
BESTAIR Humidifier Wick: CB41. Key specifications — Manufacturer Part Number: CB41.
Algae and Bacteria Inhibitor: Algae and Bacteria Inhibitor, 32 oz Container Size, Portable (MPN 1970). Key specifications — Compatible Grainger Part Number: 4NHG1; Product Type: Algae and Bacteria Inhibitor; Brand: ESSICK AIR PRODUCTS.
ESSICK AIR PRODUCTS
Algae and Bacteria Inhibitor: Algae and Bacteria Inhibitor, 32 oz Container Size, Portable (MPN 1970). Key specifications — Compatible Grainger Part Number: 4NHG1; Product Type: Algae and Bacteria Inhibitor; Brand: ESSICK AIR PRODUCTS.
BESTAIR Humidifier Wick: D18. Key specifications — Manufacturer Part Number: D18.
BESTAIR
BESTAIR Humidifier Wick: D18. Key specifications — Manufacturer Part Number: D18.

More from BESTAIR

View all BESTAIR parts
BestAir Bacteriostatic: Algae and Bacteria Inhibitor/Water Treatment, 394WU4, 32 oz Container Size (MPN 3BT-PDQ-6). Key specifications — Compatible Grainger Part Number: 394WU4; Product Type: Algae and Bacteria Inhibitor/Water Treatment; Brand: BESTAIR.
BESTAIR
BestAir Bacteriostatic: Algae and Bacteria Inhibitor/Water Treatment, 394WU4, 32 oz Container Size (MPN 3BT-PDQ-6). Key specifications — Compatible Grainger Part Number: 394WU4; Product Type: Algae and Bacteria Inhibitor/Water Treatment; Brand: BESTAIR.
Algae and Bacteria Inhibitor: Algae and Bacteria Inhibitor, 32 oz Container Size, Portable (MPN 00245). Key specifications — Product Type: Algae and Bacteria Inhibitor; Brand: BESTAIR.
BESTAIR
Algae and Bacteria Inhibitor: Algae and Bacteria Inhibitor, 32 oz Container Size, Portable (MPN 00245). Key specifications — Product Type: Algae and Bacteria Inhibitor; Brand: BESTAIR.
Humidifier Cleaner: Cleaner, 32 oz Container Size, Portable (MPN 1C). Key specifications — Product Type: Cleaner; Brand: BESTAIR.
BESTAIR
Humidifier Cleaner: Cleaner, 32 oz Container Size, Portable (MPN 1C). Key specifications — Product Type: Cleaner; Brand: BESTAIR.