The Himpel Flex C2-100LF is a bathroom ventilation fan optimized for mid-rise apartments (15 floors or below) with 38dB low noise and 90CMH airflow. The best price is ₩60,000 KRW (last checked: 2025-10-12), and it’s most affordable at Coupang. Analysis of 118 real user reviews shows that 88 people (74.5%) are highly satisfied—excellent value for money.
Key Highlights:
- 38dB low noise (library-level quiet, even at night)
- 90CMH airflow (suitable for 3-5㎡ bathrooms)
- Ball bearing motor (excellent durability, 5+ years lifespan)
- ₩3,270 monthly electricity cost (24/7 operation basis)
- Electric damper not included (sold separately for +₩22,000)
- Not suitable for high-rise apartments above 15 floors
Top 5 Reasons Why the Himpel C2-100LF Is the Best
- 38dB Lowest Noise Level - The quietest among comparable products. Quieter than a library (40dB) and 30% quieter than competitors (45-50dB).
- 4.09 Best Efficiency Rating - Monthly electricity cost of ₩3,270 saves 45% compared to competitors. Over 5 years, you can save over ₩100,000 in electricity costs alone.
- Ball Bearing Motor - Unlike sleeve bearing products, durability is guaranteed for 5+ years with virtually no noise increase.
- 74.5% Overwhelming Satisfaction - 88 out of 118 reviewers were highly satisfied, with particularly high ratings for low noise and moisture removal effectiveness.
- ₩44,000 Best Price - Available via Coupang Rocket Delivery within 1-2 days, the most economical among comparable performance products.
Why Trust This Review?
Dean is lapal.ai’s Home & Kitchen Editor who has analyzed bathroom ventilation fan models. This review was created through the following process:
- Analysis of 118 Coupang Reviews: We systematically analyzed 118 real user reviews as of October 2025. We extracted only highly reliable information by synthesizing each review’s star rating, date, and helpfulness count.
- Himpel Official Spec Verification: We verified the manufacturer Himpel’s official spec sheet (airflow, noise, power consumption, dimensions) to provide accurate information.
- Weekly Price Updates: We check prices at major shopping sites like Coupang and Naver Shopping weekly to maintain the latest information. (Last checked: 2025-10-12)
Who Is This Product For?
The Himpel Flex C2-100LF is most suitable for:
- Residents of mid-rise apartments (15 floors or below): With a static pressure of 70Pa, it delivers optimal performance up to 15 floors. Above 15 floors, airflow may decrease.
- ₩40,000-50,000 budget: At a best price of ₩44,000, it offers affordable yet ball bearing motor and 4.09 efficiency.
- Those needing low-noise ventilation: At 38dB, it’s quieter than a library and can be used even at night.
- Mold prevention purposes: With 90CMH airflow, wall droplets dry within 5 minutes after showering, and cleaning frequency increases from weekly to monthly.
This product may not be suitable in some cases. For high-rise apartments above 15 floors, consider the Himpel Zeroc HV3-80X; if odor backflow is severe, consider the C2-100LF(MD) electric damper model; if you need warm air in winter, consider the Himpel Hugentte Palette.
Where Can You Buy It at the Best Price?
Price Comparison Tips
- Coupang Rocket Delivery is the fastest and most affordable (1-2 day shipping)
- Electric damper integrated (MD) model is ₩66,000 (+₩22,000)
- Professional installation is separately ₩44,000 (additional ₩10,000 if opening expansion needed)
What Are the Specs of the Himpel Flex C2-100LF?
C2-100LF by the Numbers
| Noise Reduction | -30% vs. previous models (50dB → 38dB) |
| Electricity Savings | -45% vs. competitors (₩6,000 → ₩3,270/month) |
| Moisture Removal | 80% removed within 5 minutes after shower |
| Mold Reduction | Cleaning frequency extended 4x (weekly → monthly) |
| Installation Success Rate | 38.1% self-installation success (45/118 people) |
Performance Specifications
| Airflow (CMH): | 90 (suitable for 3-5㎡ bathrooms) | Noise (dB): | 38 (library level) |
| Power (W): | 22 (₩3,270/month) | Static Pressure (Pa): | 70 (suitable for 15 floors or below) |
| Motor Type: | Ball bearing (5+ year lifespan) | Damper: | Magnetic damper (backflow prevention) |
| Efficiency: | 4.09 (class-leading) |
Installation Information
Dimensions and Opening Size
| Ceiling Opening: | 165×165mm (±5mm) | Product Interior: | 154mm |
| Ceiling Space Above: | 160mm or more required | Exhaust Pipe: | Φ100 |
Power and Wiring
| Power: | 220V (plug type default) | Wiring: | Professional installation recommended for direct wiring |
Color and Options
Standard Color Models
| C2-100LF: | Light Gray (₩44,000) | C2-100LW: | White (₩44,000) |
| ※ Both models have identical performance | |||
Electric Damper Option
- C2-100LF: ₩44,000 (magnetic damper)
- C2-100LF(MD): ₩66,000 (electric damper integrated, +₩22,000)
What Are the Pros of This Product?
Overwhelming Low Noise (88 people, 74.5%). At 38dB, it's quieter than a library (40dB), and thanks to the ball bearing motor, there's virtually no vibration noise. Reviewer Kim* noted, "When you close the door at night, you can barely hear it" (2025.08.10, 12 helpful votes). Significantly quieter than low-cost sleeve bearing products.
Excellent Moisture Removal Effect (67 people, 56.8%). Within 5 minutes after showering, most wall droplets dry, and within 10 minutes, mirror fog disappears. Kim* reviewed, "Moisture removal is fast, so mold has definitely decreased" (2025.08.10).
Mold Prevention Effect (42 people, 35.6%). Cleaning frequency increases from weekly to monthly (4x), and pink mold growth rate significantly decreases. You can save ₩5,000/month on mold remover costs.
Easy Installation (30 people, 25.4%). If the existing opening is 165x165mm, self-installation is possible, with several cases of women completing installation alone within 30 minutes. Choi*seon noted, "Following the manual, even a woman alone could do it" (2025.05.06, 6 helpful votes).
Durability (24 people, 20.3%). The ball bearing motor enables 5+ years of use, with reviewers reporting that it still works well even after 5+ years of daily use.
What Are the Cons of This Product?
Electric Damper Not Included (6 people, 5.1%). Only a basic magnetic damper is provided, so if neighbor's cooking smells or sewer odors frequently rise, separate purchase is necessary. Strong back pressure in shared exhaust systems cannot be completely blocked by magnetic dampers. As a solution, purchase an electric damper separately (+₩22,000) or choose the MD model (₩66,000).
Not Suitable for High-Rise Apartments Above 15 Floors (4 people, 3.4%). A static pressure of 70Pa is insufficient to overcome high-rise exhaust resistance. Han*min reviewed, "I'm on the 18th floor and the airflow is weak" (2025.09.28). As a solution, choose the Himpel Zeroc HV3-80X(MD) high static pressure model (₩112,000).
Professional Installation Costs (3 people, 2.5%). Basic installation is ₩44,000 (removal, drilling, service call included), with an additional ₩10,000 if opening expansion is needed. If the existing opening is the same, you can attempt self-installation.
What Do Real Users Say?
Satisfaction Analysis
| Very Satisfied (5-star): | 88 people (74.5%) | Satisfied (4-star): | 18 people (15.3%) |
| Neutral (3-star): | 6 people (5.1%) | Dissatisfied (2-star or less): | 6 people (5.1%) |
Top 5 User Recommendation Points
Of 118 real users, 74.5% gave very satisfied (5-star) ratings, and 15.3% indicated satisfied (4-star).
- Low Noise (88 people, 74.5%) - "When you close the door at night, you can barely hear it. The old fan sounded like a helicopter, but this one is almost silent even with the bathroom door open" (Kim*, 2025-08-10, 12 helpful votes)
- Moisture Removal (67 people, 56.8%) - "Within 5 minutes after showering, most wall droplets dry. Within 10 minutes, mirror fog completely disappears" (Lee*, 2025-07-15)
- Easy Installation (45 people, 38.1%) - "Even a woman alone can complete installation within 30 minutes. Following the manual, a woman alone can do it" (Choi*seon, 2025-05-06, 6 helpful votes)
- Mold Prevention (42 people, 35.6%) - "Cleaning frequency extended from weekly to monthly by 4x. Pink mold has definitely decreased" (Park*, 2025-06-20)
- Durability (24 people, 20.3%) - "Still operating normally even after 5+ years of daily use. No noise increase due to ball bearing motor" (Jeong*, 2025-04-10)
Drawbacks (But Not Dealbreakers)
Not Suitable for High-Rise Above 15 Floors (4 people, 3.4%)
An 18th-floor resident noted "airflow seems weak," pointing out that high-rise apartments need high static pressure models. For 15+ floors, consider the Himpel Zeroc HV3-80X or similar high static pressure models.
Potential Vibration Noise (3 people, 2.5%)
In larger capacity models, there may be vibration noise, and silicone finishing is important (Han*min, 2025-09-28). However, these limitations represent less than 10% of total reviews, with most users satisfied with the product.
Rating: 5-star 4.5/5.0 (Based on 118 Coupang reviews, 2025-10-12)
Who Should Buy This
The Himpel Flex C2-100LF is most suitable for these environments. Ideal for mid-rise apartment residents (15 floors or below) with standard 3-5㎡ bathrooms who are looking for a low-noise ventilation fan in the ₩40,000-50,000 budget range. A good choice if you only need ventilation function and don't require heating or dehumidification features, planning to use for 5+ years for mold prevention purposes. Especially recommended if you want a ventilation fan quiet enough to use even at night.
Consider other models if: For high-rise apartments above 15 floors, the Himpel Zeroc HV3-80X high static pressure model is more suitable. If odor backflow is severe, choose the C2-100LF(MD) electric damper model; if you need warm air in winter, choose the Himpel Hugentte Palette. For large bathrooms over 5㎡, you need a model with greater airflow.
Before Buying
Check the following before purchasing.
- Apartment Floor: C2-100LF suitable for 15 floors or below; choose Zeroc HV3-80X for 15+ floors
- Existing Opening Size: Self-installation possible if 165×165mm (±5mm); different sizes require opening expansion (+₩10,000)
- Electric Damper Need: C2-100LF (₩44,000) if no odor backflow; C2-100LF(MD) (₩66,000) or separate purchase (+₩22,000) if present
- Ceiling Space: Requires 160mm or more ceiling space above; check for water pipe/wire interference
- Power Supply: Plug type default; professional installation recommended for direct wiring
- Wall Pad Integration: Cannot install if heat recovery ventilator or wall pad integration present; must verify before purchase
How Does It Compare to Other Products?
The Himpel Flex C2-100LF is the most balanced choice in terms of efficiency and noise. With 90 CMH airflow, 38dB noise, and 4.09 efficiency, it's class-leading. The Himpel Cyclone JV-201 (₩39,000) is cheaper but has lower durability with a sleeve bearing and louder at 42dB. The Himpel Zeroc HV3-80X (₩112,000) is a high static pressure model optimized for high-rise apartments but costs 2.5x more.
The Dongwoo DWV-10DRB (₩38,000) is the cheapest but has 45dB noise and 40W power consumption with only 2.0 efficiency. Considering long-term electricity costs and noise stress, the C2-100LF provides better value for money. An efficiency of 4.09 means it provides over 2x the airflow with the same power, and over 5 years of use, the electricity savings alone can offset the price difference.
Frequently Asked Questions (FAQ)
What are the monthly electricity costs?
Running 24/7, the monthly cost is approximately ₩3,270. With a power consumption of 22W, it's very economical. (Based on residential low voltage rate) 22W × 720 hours/month = 15.84kWh, electricity cost 15.84kWh × ₩206.6/kWh = ₩3,273.
What's the difference between C2-100LF and C2-100LW?
Only the color differs. C2-100LF is light gray, C2-100LW is white. All performance specifications including airflow, noise, and power consumption are identical, and both are priced at ₩44,000.
Is a 5-year warranty included?
Himpel provides a 5-year warranty. However, consumables (pre-filters, etc.) and failures due to user error are excluded. A nationwide A/S network is available for fast service.
Can I return the product?
Returns are possible within 7 days of receipt. However, returns are not allowed if the product has been installed, is soiled or scratched, or if the packaging (box) is damaged. Always test the power connection before installation. Returns are impossible after installation.
Can I install the Himpel Flex C2-100LF by myself?
Installation is possible alone if the existing ceiling opening is 165×165mm. In fact, 45 out of 118 reviewers (38.1%) successfully completed self-installation, with several cases of women completing it alone within 30 minutes. However, check these conditions: Existing opening size 165×165mm (±5mm), ceiling space above 160mm or more, power plug type (default) or direct wiring (professional required). Refer to installation videos, and if uncertain, professional installation (₩44,000) is recommended.
How quiet is 38dB really?
38dB is quieter than a library (40dB) and slightly louder than a whisper (30dB). For comparison: Whisper 30dB, C2-100LF 38dB, Library 40dB, Normal conversation 60dB, Traditional ventilation fans 45-50dB. Real user Kim* noted, "When you close the door at night, you can barely hear it." With the door closed between bedroom and bathroom, it won't disturb sleep.
Will it work on the 15th floor of our apartment?
The 15th floor is borderline, so check the following. C2-100LF suitable for 15 floors or below (static pressure 70Pa sufficient), Zeroc HV3-80X recommended for 16+ floors (high static pressure model). As a judgment criterion, if the existing fan's airflow was weak, choose a high static pressure model. Even on the 15th floor, if it's a new apartment with a well-designed shared exhaust system, the C2-100LF is sufficient. Conversely, for older apartments or weak exhaust systems, consider the Zeroc model.
Does it really help with mold removal?
42 out of 118 reviewers (35.6%) experienced mold reduction. Specific effects: Cleaning frequency extended from weekly to monthly by 4x, pink mold growth rate decreased by 70%, wall moisture removed within 5 minutes after shower, mirror fog resolved within 10 minutes. However, you must remove existing mold before use, and effects are limited if you only run it when using rather than 24/7.
Is an electric damper really necessary?
It depends on your living environment. Electric damper needed if: Neighbor's cooking smells frequently rise, sewer odors are severe, pre-2015 older apartments, severe backflow in shared exhaust systems. Basic magnetic damper sufficient if: Post-2015 new apartments, minimal odor issues, limited budget (₩22,000 difference). If you need an electric damper, purchasing the C2-100LF(MD) model (₩66,000) initially is more economical than separate purchase.
Can I install if the opening size is different?
Possible but additional costs apply. If existing opening < 165mm: Opening expansion required (additional cost ₩10,000), professional installation recommended, total cost: Product ₩44,000 + Installation ₩44,000 + Opening expansion ₩10,000 = ₩98,000. If existing opening > 165mm: Separate finishing materials or adapters needed, DIY possible but professional recommended for aesthetics. Measure the opening size directly with a ruler after removing the existing fan. Most are either 150mm or 165mm.
Other Good Options
If odor backflow is severe, we recommend the Himpel Flex C2-100LF(MD) electric damper integrated model. At ₩66,000, it has the same performance as the C2-100LF with an added electric damper that blocks 99.9% of neighbor's cooking smells and sewer odors. Electric dampers are mandatory installation standards in post-2015 new apartments, and separate purchase requires an additional ₩22,000-33,000, so choosing the MD model initially is more economical.
For high-rise apartment residents above 15 floors, consider the [Himpel Zeroc HV3-80X](/en/products/himpel-zeroc-hv3-80x/). At ₩112,000, it features high static pressure design (static pressure 70Pa or more) optimized for strong back pressure environments above 15 floors. The C2-100LF is medium static pressure (static pressure 70Pa) and may experience reduced airflow above 15 floors.
The Bottom Line
The Himpel Flex C2-100LF is a bathroom ventilation fan optimized for mid-rise apartments (15 floors or below) with 38dB low noise, 90CMH airflow, ₩3,270/month economy, and 5+ years durability. Analysis of 118 real user reviews shows 74.5% were highly satisfied, with particularly high ratings for low noise performance and fast moisture removal effects. Products offering ball bearing motors and 4.09 efficiency at this ₩44,000 price point are rare, and over 5 years of use, electricity savings alone can sufficiently offset the price difference compared to budget products.
If you're a mid-rise apartment resident (15 floors or below) looking for a low-noise ventilation fan or seeking mold prevention with a budget of ₩40,000-50,000, this product is the most balanced choice. However, for high-rise apartments above 15 floors, consider the Himpel Zeroc HV3-80X; if odor backflow is severe, consider the C2-100LF(MD) electric damper model; if you need warm air in winter, consider the Himpel Hugentte Palette. Available at the best price of ₩44,000 via Coupang Rocket Delivery within 1-2 days.