Filter Fans offer NEMA 4 or NEMA 4X ratings.

Press Release Summary:

Suitable for dissipating high heat loads, Guardian Series offers NEMA 4 rating, while GuardianX Series features NEMA 4X rating and stainless steel shell. Indoor/outdoor units are available with airflows from 90–290 cfm (without filter), and are suitable for washdown, telecommunications, and food service industry. Available filters guarantee continuously high level of protection according to EU4, with 94% separation efficiency according to DIN 24185 Standard.

Original Press Release:

Kooltronic Has Expanded Its Line of Filter Fans to Include Models Offering the Security of NEMA 4 or 4X Ratings Together with the Versatility of Indoor or Outdoor Use

Kooltronic has expanded its line of filter fans to include models offering the security of NEMA 4 or 4X Ratings together with the versatility of indoor or outdoor use. All Guardian Series Filter Fans have a NEMA 4 Rating. The GuardianX Series Filter Fans, with a NEMA 4X Rating, are offered with a Stainless Steel Shell. The Guardian/GuardianX Series Indoor/Outdoor Filter Fans are a perfect choice for dissipating high heat loads economically. Two models are available, with airflows from 90 to 290 CFM (Fan airflow without filter).

The new Guardian/GuardianX Series Indoor/Outdoor Filter Fans offer the same convenience, versatility and reliability as the Advantage and Sentry Series Filter Fans with the added protection of a NEMA 4 or 4X Rating, making these models an excellent choice for washdown, telecommunications and the food service industry.

With over 55 years of service to its customers, KOOLTRONIC is the leading manufacturer of air conditioners, heat exchangers, fans and blowers designed specifically to cool the interior of electrical/electronic enclosures containing heat sensitive components. The company has a complete manufacturing facility and sales office at its headquarters in Pennington, NJ and a regional sales office in Ventura, CA. 

To view these and other cooling products manufactured by KOOLTRONIC, please visit our website:


For more information, please contact:

Steve Coulton

Business Development Manager

Kooltronic, Inc.

Tel: (609) 466-3400

Fax: (609) 466-1114

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