As an Aprilaire humidifier quietly hydrates the air in your home, it performs a subtle but vital task. Maintaining proper humidity between 30-50% brings relief from dryness, protects furnishings, and even saves on heating costs. But like any machine, your Aprilaire needs regular maintenance for optimum operation.
The humble replacement filter is one of the most critical components affecting performance. From trapping mineral sediment to enabling proper airflow, filters preserve your humidifier’s health. But not all filters are created equal.
In this guide, we’ll explore the top Aprilaire filters, key factors in choosing replacement models, and frequently asked questions to help you select the right fit for your system. Read on to learn how the correct filters keep your Aprilaire working efficiently year after year.
Top Replacements for Aprilaire Humidifiers
Aprilaire offers a range of filter types and models designed specifically for their humidification systems. Here are some top options:
Aprilaire 201 Replacement Filter
The 201 is the standard filter included with most Aprilaire evaporative humidifier models. It features:
- Polyester fiber filtration media
- Removes sediments and minerals
- Offered in various sizes to fit models
- Fairly inexpensive and widely available
As an affordable baseline option compatible with common Aprilaire models like the 400, 500 and 600, the 201 filter fits most households’ needs.
Aprilaire 212 Pleated Filter
For higher capacity systems, the Aprilaire 212 offers expanded surface area with:
- Pleated fabric design
- Handles increased airflow demands
- Higher MERV rating removes smaller particles
- Suitable for large homes and steam systems
- More expensive than 201 filters
If your Aprilaire struggles with the 201 filter, step up to the 212 for greater flow and efficiency.
Aprilaire 213 Pleated Filter
The 213 filter provides maximum airflow and top-tier efficiency:
- Highest MERV rating up to 16
- Premium pleated fabric construction
- Made specifically for 800 steam models
- Significantly more expensive than 201/212
- Reduces steam system maintenance
For whole-home steam humidification, the 213 filter optimizes performance and reduces mineral buildup issues.
Aprilaire 204 Basic Filter
The affordable 204 filter offers basic sediment filtration with:
- Looped polyester fabric
- Compatible with discontinued models
- Lacks pleating for lower airflow
- Lower filtration performance
- Inexpensive but has drawbacks
While not an ideal choice, the 204 provides an option for outdated Aprilaire units if modern filters don’t fit.
Aprilaire 113 Sponge Filter
The 113 uses a unique sponge pad design to:
- Soften hard water before humidification
- Allow beneficial mineral absorption
- Often paired with other filters
- Inexpensive add-on filter
Adding a 113 sponge filter helps reduce scale buildup in evaporative Aprilaire systems.
No single filter type is universally superior. Consider your specific model, water quality, and environmental factors to choose the right replacement.
Key Considerations for Choosing Aprilaire Filters
To select the ideal filters for your Aprilaire humidifier, keep these factors in mind:
Confirm a replacement filter is made to fit your specific Aprilaire model. Mismatched or universal fit filters won’t seal correctly.
Consult humidifier manuals or Aprilaire’s website for model-specific filter recommendations.
Check that replacements match the exact size and dimensions of your current filters for tight, secure fitting in the humidifier housing.
Even slight size mismatches reduce performance and strain the fan motor.
Filter composition matters. Polyester mesh filters water adequately while resisting deterioration. Avoid paper-only filters that fall apart when wet.
Pleated, extended surface area designs allow greater airflow over basic pads.
Flow Rate Capacity
Select filters that handle the rated airflow of your humidifier model under peak demand. Undersized filters will choke airflow.
Oversize doesn’t hurt but costs more. Check humidity output at maximum to determine flow needs.
Aprilaire suggests replacing filters every 1-3 months depending on run times. Higher capacity, efficiency filters may allow longer replacement intervals.
Don’t wait for visible clogging. Stick to recommended schedules for best performance.
Compare MERV ratings when available. Higher MERV = higher filtration efficiency.
But increased efficiency can impede airflow if undersized. Balance effectiveness with adequate flow.
Better filtration and increased capacity cost more. But they also reduce strain on the humidifier and frequency of required replacements.
Factor in filter expenses when choosing models. Plan for 2-4 changes per year.
Purchase filters from Aprilaire direct or authorized dealers to ensure genuine parts. Avoid questionable off-brand filters on some auction sites.
Confirm your chosen brand and model are easy to purchase when you need them.
Ease of Replacement
While DIY filter swaps are straightforward, someAprilaire models require calling an HVAC tech if access is challenging.
Evaluate your ability to change filters based on location and housing design before choosing a model.
Follow this criteria to select replacement filters optimized for your specific Aprilaire humidifier.
Frequently Asked Filter Questions
Wondering when to change filters, where to buy replacements, and how to improve their performance? Here are answers to common Aprilaire filter FAQs:
How Often Should You Replace Aprilaire Filters?
Aprilaire recommends swapping filters every 1-3 months depending on run times and water quality. Replace sooner if airflow seems restricted.
With heavy use or hard water, err on the side of more frequent changes. Don’t wait for visible clogging.
Where Can I Buy Genuine Aprilaire Filters?
Purchase directly from Aprilaire.com or authorized HVAC suppliers to ensure compatible parts. Big box stores may also carry basic models.
Avoid unverified off-brand filters sold online that may compromise fit and performance.
Can I Wash and Reuse Aprilaire Filters?
The fiber media in most disposable Aprilaire filters cannot be cleaned without damage. However, some reusable sponge pad styles can be gently rinsed and wrung out.
Replace clogged disposable filters – don’t try to extend their lifespan by washing.
Should I Use Cheap Generic Replacement Filters?
Avoid generic filters that are not made specifically for Aprilaire models. Compromising on fit, water-resistance, and filtration risks poor humidifier performance.
Pay a little more for OEM filters that you know will perform as intended.
When is Airflow Too Restricted?
If your Aprilaire struggles to maintain the humidity setpoint, has excessive humidity, or is louder than normal, airflow may be choked.
Replace filters if you observe these issues even if filters aren’t visibly clogged yet. Don’t wait for performance to drop off.
What Signs Indicate I Need Better Filtration?
Frequent buildup of mineral deposits and reduced time between filter changes indicate your current filters aren’t capturing sediment sufficiently.
Switch to higher capacity, pleated media filters to improve particle capture and extend replacement intervals.
How Can I Make Filters Last Longer?
Follow manufacturer guidelines for sizing and replacement intervals. Using the proper capacity filter prevents overload.
Rinsing reusable style filters prolongs usefulness. Also improving whole-home filtration reduces particle intake.
By carefully selecting replacement filters matched to your specific Aprilaire model and adhering to good maintenance practices, you can optimize humidifier filter performance.
Breathe Easier with Fresh Aprilaire Filters
Clean air and proper humidity make a home feel fresh and welcoming. As a critical component for healthy operation, Aprilaire humidifier filters capture harmful particles while enabling unrestricted airflow.
Choosing compatible, high-quality replacement filters ensures your Aprilaire system performs as designed. Take time to select the ideal filter for your model’s specs and water conditions. Follow recommended maintenance schedules for clean air and peak efficiency all year long.