Aprilaire 4640
Aprilaire OEM Replacement Humidifier Water Pad Scale Control Insert by Aprilaire
Price as of 2026-06-01. Check Amazon for the current price.
Quick Decision
Price Intelligence
- Budget:$5–$39← You are here
- Mid-range:$39–$179
- Premium:$179+
Is This Right For You?
- •Budget-conscious shoppers — priced below 80% of Humidifiers
- •You prefer well-established products — only 20 reviews, so the rating may still shift
- •Dry & Store Dry-Brik® II Desiccant Blocks offers a better rating (4.9/5) at a similar or lower price ($16)
- •Eva-Dry Wireless Mini Dehumidifier — 54% cheaper at $15 (Score A)
- •Dry & Store Dry-Brik® II Desiccant Blocks — higher rated at 4.9/5 ($16)
📊 Based on data analysis of 164 products in this category.
Mubboo Score: B-
How we calculate the Mubboo Score
Quality (45%): customer rating, normalized to a 10-point scale
Popularity (35%): review volume vs the category leader, log-scaled
Value (20%): price position vs other Humidifiers
Computed from live Amazon rating, review count, and price across 164 Humidifiers available to US consumers · last refreshed 2026-06-01.
How It Compares
This Product Aprilaire 4640 | Most Popular AquaOasis ® Cool Mist Humidifier | Best Rated Dry & Store Dry-Brik® II Desiccant Blocks | Best Value Eva-Dry Wireless Mini Dehumidifier | |
|---|---|---|---|---|
| Price | $32.86 | $29.99 | $15.95 | $14.97 |
| Rating | 4.4/5 | 4.3/5 | 4.9/5 | 4.2/5 |
| Reviews | 20 | 106,396 | 3,688 | 35,011 |
| Mubboo Score | B- | A | A | A |
What People Say
Synthesized from 40 reviews · 100% verified purchases.
Buyers should prioritize easy-to-clean designs and refill methods, and use distilled water in ultrasonic models to avoid white dust and potential health risks.
- Quiet operation
- Effective humidification/dehumidification
- Ease of use
- Good capacity/runtime
- Refilling or emptying difficulties
- Durability and reliability issues
- Cleaning challenges
Expert Picks in Humidifiers
- GE APYR50LC — large basements and open areas
- Midea MAD35S1QWT — mid-sized rooms and bedrooms
- Waykar PD160B — small bedrooms
- ProBreeze PB-03 — closets and crawl spaces
Category recommendations from independent expert publications. Source links in References.
Related Video Reviews
- 📹 Midea Cube Dehumidifier Operation and Overview — Midea America
- 📹 Midea Cube Smart Dehumidifier Setup and Review — The Fixer
- 📹 GE Dehumidifier Walkthrough and What Not to Do Model APEL50LZQ1 — FixAnythingSaveMoney
About Aprilaire
- 8 products in our database
- Average rating: 4.6/5 across all products
- Price range: $12.48 – $524.99
- Categories: Humidifier Filters, Humidifiers
If not the 4640, consider these
Bottom Line
Aprilaire 4640 earns Mubboo Score B-. Priced at $33 — a budget-friendly option, below the category average of $133. Rated 4.4/5 from 20+ reviews. Strong buy if: budget-conscious shoppers. Skip if: you prefer well-established products — AquaOasis ® Cool Mist Humidifier (Score A, $30) may fit better.
Frequently Asked Questions
Is the Aprilaire 4640 worth buying in 2026?
It earns a Mubboo Score of B-, with a 4.4/5 rating from 20 reviews — better than 64% of Humidifiers we track.
How much does the Aprilaire 4640 cost?
It is currently $32.86 — budget-tier pricing for Humidifiers.
How does the 4640 compare to other Humidifiers?
The category's most-reviewed alternative is the AquaOasis ® Cool Mist Humidifier (4.3/5, 106,396 reviews, $29.99). The 4640 carries a Mubboo Score of B- vs A.
Sources & References
Products available through US retailers. Prices in USD. Sales tax varies by state and is not included.
Mubboo may earn a commission on purchases made through affiliate links. This does not affect our Mubboo Score, product rankings, or editorial judgments. Prices are accurate as of the last sync (2026-06-01) and may change.