True Blue Allergen 4-pack box for easy replacement and value.
True Blue Allergen media close-up showing electrostatic fibers attracting particles.
True Blue Allergen filter installed in an HVAC system.
True Blue 18x30x1 size label showing compatibility.
True Blue Made in USA badge on packaging.
Dust particles trapped by True Blue filter demonstrating filtration.
Four-month replace interval for True Blue filter.
True Blue brand logo on filter packaging.

True Blue

True Blue 18x30x1 MERV 11 Allergen Air Filter (4-Pack) | Replacement HVAC Filter | Made in USA

High-performance tools and home improvement made for confident daily results

$70.15

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Why customers choose TaskHolt Tools

Overview

The True Blue Allergen filter is designed for busy homes with kids, pets, and everyday airborne particles. With an electrostatically charged media, this 18x30x1 filter works to capture and hold smaller particles, helping maintain a fresher indoor environment between replacements. Made in the USA, this 4-pack provides convenient, long-lasting filtration for common residential systems.

Compared with standard fiberglass filters, True Blue claims up to 53x greater effectiveness in attracting and trapping particles, thanks to its pleated, electrostatically charged media. The result is a filter that can better handle a range of everyday irritants while keeping maintenance routines simple.

What makes it effective

  • Cleaner indoor air: A MERV 11 pleated design reduces airborne contaminants in most homes with furnaces, air conditioners, heat pumps, and HVAC units.
  • Airborne contaminants trapped: The filter targets particles in the 3.0–10.0 micron range, including dust, pollen, pet dander, smoke, and smog.
  • Designed for families and pets: Electrostatic media attracts small particles, improving filtration even when airflow is reduced by everyday use.
  • Replacement cadence: For best results, plan to replace every 4 months to maintain steady filtration and airflow.
  • Made in the USA: Each filter is manufactured and assembled domestically, with straightforward installation instructions.

What to expect in everyday use

When you install the True Blue filter, you may notice a steadier airflow and a potential reduction in visible dust on surfaces. The filter’s synthetic media resists mold and bacterial growth under normal use, helping maintain a consistent air-cleaning performance as seasons change.

Using this filter in compatible HVAC systems supports regular maintenance routines without overcomplicating your setup. It’s designed to fit a wide range of brands and configurations, making it a practical option for many homes seeking reliable, long-lasting filtration.

Type and capacity highlights

  • Size: 18 x 30 x 1 inches
  • Material: 100% synthetic, electrostatically charged media
  • Protection: Helps reduce common indoor particulates while supporting proper airflow
  • Packaging: 4-pack for convenient stocking and replacements

FAQ

Q: What size is the True Blue Allergen filter?

A: The filter is 18x30x1 inches and fits many standard home HVAC units.

Q: How long should I replace the True Blue Allergen filter?

A: Replace every 4 months for optimal airflow and filtration performance.

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