Do you know why “Lossnay” is chosen for soundproof room ventilation?
As the only commercial ventilation fan that satisfies the contradictory requirements of “exchanging air without leaking sound,” Lossnay has numerous adoption records in music rooms, streaming booths, and studios.
This article explains Lossnay’s mechanism and introduction examples in detail, providing practical information including DIY installation points.
Introduction: Why “Lossnay” Is Chosen for Soundproof Room Ventilation#
The reasons Lossnay is chosen for soundproof room ventilation are clear.
The Only Commercial Ventilation Fan That “Exchanges Air Without Leaking Sound”#
Standard ventilation fans cause sound leakage in exchange for ventilation. However, Lossnay is the only commercial ventilation fan that achieves “exchanging air without leaking sound.”
Lossnay Features
- Heat exchange ventilation: Simultaneously exhausts and supplies air
- Low-noise structure: 25-35dB (during quiet operation)
- Soundproof design: Internal ducts with bends + sound-absorbing material filling
Differences from Conventional Ventilation Fans
- Standard ventilation fans: Straight exhaust with large sound leakage
- Lossnay: Cross heat exchange minimizes sound leakage
Heat Exchange + Low-Noise Structure Adopted in Many Music Rooms, Streaming Booths, and Studios#
Lossnay has numerous adoption records in environments where sound quality is important, such as music rooms, streaming booths, and studios.
Adoption Records
- Yamaha Cefine NS: Standard adoption trend
- Kawai Nasal: Standard adoption trend
- Streaming booths: Increasing adoption in DIY soundproof rooms
- Music studios: Commercial models also adopted
Reasons for Selection
- Can ventilate while maintaining soundproofing performance
- Can ventilate without losing heat
- Low noise does not affect recording or streaming
What is Lossnay? — Features of Mitsubishi Electric’s Ventilation and Air Purification System#
Let’s explain Lossnay’s basic information and features.
Official Name: “Lossnay Ventilation and Air Purification System”#
Lossnay’s official name is the “Lossnay Ventilation and Air Purification System.” It is a ventilation system developed and manufactured by Mitsubishi Electric.
Origin of Product Name
- Lossnay: Loss (loss) + Nay (none)
- Ventilation system that minimizes heat loss
Product Lineup
- Residential Lossnay Wall-Mounted Type (1-pipe installation type): For individuals (single-phase 100V compatible)
- Residential Lossnay Ceiling-Embedded Type: For general homes
- Commercial Lossnay (High-airflow, Thin Basic Series): For studios, music rooms, whole-house ventilation
Feature: Heat Exchange Ventilation That Simultaneously Exhausts and Supplies Air#
Lossnay’s greatest feature is heat exchange ventilation.
Mechanism
- Simultaneously exhausts and supplies air
- Recovers heat with heat exchange element
- Supplies air at temperature close to outside air
Benefits
- Can ventilate without losing heat
- Temperature stability in summer and winter
- Energy-efficient operation possible
Structure#
Let’s explain Lossnay’s structure in detail.
Double-Structure Duct with Insulation
- Outer: Sound-insulating sheet
- Inner: Sound-absorbing material
- Insulation: Prevents heat loss
Energy-Efficient Operation with Heat Exchange Element
- Transfers exhaust heat to supply air
- Heat recovery rate: 70-80%
- Energy-saving effect: Reduces heating/cooling costs
Noise Level: 25-35dB (During Quiet Operation)
- Normal operation: 30-35dB
- Quiet operation: 25-30dB
- Level that does not affect recording or streaming
Types: Wall-Mounted Type / Ceiling-Embedded Type / Commercial Models#
Lossnay has multiple types according to purpose.
Wall-Mounted Type (Residential Lossnay 1-Pipe Installation Type)
- Optimal for individuals
- Relatively easy installation
- Price: About ¥15,000 (market price)
Ceiling-Embedded Type (Residential Lossnay)
- Clean appearance
- Embedded in ceiling
- Price: ¥30,000-40,000 (market price)
Commercial Models (High-Airflow, Thin Basic Series)
- For large studios and whole-house ventilation
- High ventilation capacity
- Price: Hundreds of thousands to nearly ¥1,000,000 (contractor pricing)
- Note: Not suitable for general individual single-room soundproof room ventilation
Reasons for Increasing Adoption in Soundproof Rooms#
Let’s explain in detail why Lossnay is chosen for soundproof rooms.
Differences from Standard Ventilation Fans (Straight Exhaust vs. Cross Heat Exchange)#
Let’s compare differences between standard ventilation fans and Lossnay.
Standard Ventilation Fans
- Straight exhaust: Sound goes directly outside
- Large sound leakage
- Soundproofing performance decreases
Lossnay
- Cross heat exchange: Exhaust and supply air cross
- Minimal sound leakage
- Maintains soundproofing performance
Effect Differences
- Standard ventilation fans: D-20 to 30 (performance decrease)
- Lossnay: D-30 to 40 (performance maintained)
Sound Leakage Prevention Structure: Internal Ducts with Bends + Sound-Absorbing Material Filling#
Let’s explain Lossnay’s sound leakage prevention structure.
Internal Duct Bent Structure
- Creates 90-degree or greater bends
- Changes sound path
- Attenuates sound leakage
Sound-Absorbing Material Filling
- Places sound-absorbing material in ducts
- Attenuates sound energy
- Glass wool, urethane foam, etc.
Effect
- Sound leakage: About 10-15dB attenuation
- Ventilation performance: Maintained
- Soundproofing performance: Maintains D-30 to 40
Can Ventilate Without Losing Heat → Temperature Stability in Summer and Winter#
Lossnay’s heat exchange function enables ventilation without losing heat.
Summer Effect
- Even when outside temperature is high, maintains indoor cool air
- Reduces air conditioner load
- Temperature stability: Within ±2℃
Winter Effect
- Even when outside temperature is low, maintains indoor warm air
- Reduces heating load
- Temperature stability: Within ±2℃
Energy-Saving Effect
- Heating/cooling cost reduction: 20-30%
- Heat recovery rate: 70-80%
- Annual electricity cost reduction: Tens of thousands of yen
Actual Measurements: Standard Adoption Trend in Yamaha, Nasal, etc. (D-40 to 50 Compatible)#
Lossnay is also standard adopted by high-end soundproof room manufacturers.
Yamaha Cefine NS
- Adopted as standard option
- Maintains D-40 to 50 soundproofing performance
- Improves comfort with heat exchange function
Kawai Nasal
- Adopted as standard option
- Maintains D-40 to 50 soundproofing performance
- Commercial models also adopted
Effect
- Soundproofing performance: Maintains D-40 to 50
- Ventilation performance: Ensures sufficient ventilation volume
- Comfort: Temperature and humidity stability
Lossnay Introduction Examples#
Let’s introduce actual introduction examples.
Introduction Example Comparison Table#
| Purpose | Installation Environment | Effect | Introduction Cost |
|---|---|---|---|
| Piano Practice Room (1.5 tatami) | Yamaha Cefine NS | Room temp −2℃ / Sound leakage −10dB | About ¥50,000-60,000 |
| Streaming Booth (2 tatami DIY) | DIY sound-absorbing room + Lossnay wall-mounted type | Eliminates stuffiness even during long streaming | About ¥30,000-40,000 |
| Soundproof Classroom (6 tatami) | Commercial Lossnay + soundproof duct | Maintains soundproofing performance / Stable CO₂ | Hundreds of thousands scale |
Example 1: Piano Practice Room (1.5 tatami)#
Installation Environment
- Yamaha Cefine NS 1.5 tatami
- Lossnay standard type
- Ceiling-embedded type
Effect
- Room temperature: −2℃ (summer)
- Sound leakage: −10dB
- CO₂ concentration: Maintains below 1,000ppm
Introduction Cost
- Unit: ¥30,000-40,000 (ceiling-embedded type market price)
- Installation cost: About ¥20,000
- Total: About ¥50,000-60,000
Example 2: Streaming Booth (2 tatami DIY)#
Installation Environment
- DIY sound-absorbing room (closet conversion)
- Residential Lossnay Wall-Mounted Type (1-pipe installation type)
- Wall-mounted type
Effect
- Eliminates stuffiness even during long streaming
- Sound leakage: −8dB
- Temperature and humidity stability
Introduction Cost
- Unit: About ¥15,000 (wall-mounted type market price)
- Installation cost: About ¥10,000-20,000 (DIY)
- Total: About ¥30,000-40,000
Example 3: Soundproof Classroom (6 tatami)#
Installation Environment
- Commercial soundproof room
- Commercial Lossnay
- Soundproof duct combined
Effect
- Maintains soundproofing performance: D-50
- CO₂ concentration: Maintains below 800ppm
- Temperature and humidity stability
Introduction Cost
- Unit: Hundreds of thousands scale (commercial model)
- Installation cost: Additional required
- Total: Hundreds of thousands to nearly ¥1,000,000
- Note: High-airflow model for whole-house ventilation, excessive specs for single-room soundproof room
Points for Lossnay Installation and Operation#
Let’s explain points for effectively operating Lossnay.
Installation Position: Wall Side or Ceiling Away from Sound Source#
Lossnay installation position is important: away from sound source.
Recommended Installation Position
- At least 1.5m from sound source
- Install on wall side (ceiling-embedded type also possible)
- Separate intake and exhaust openings
Positions to Avoid
- Near sound source
- In front of microphone
- Near instruments
Do Not Make Intake/Exhaust Paths Straight (Soundproof with Bent Ducts)#
It’s important that intake/exhaust paths are not straight.
Recommended Design
- Create 90-degree or greater bends
- Combine multiple bends
- Soundproof with bent ducts
Effect
- Straight path: Large sound leakage
- Bent path: Sound leakage attenuated by −10dB or more
Strengthen Soundproofing Performance by Adding Sound-Absorbing Wool Inside Ducts#
Adding sound-absorbing wool inside ducts can further strengthen soundproofing performance.
Addition Method
- Attach sound-absorbing wool to duct inner walls
- Thickness: 50mm+ recommended
- Materials: Glass wool, urethane foam
Effect
- Sound leakage: Further −5 to 10dB attenuation
- Ventilation performance: Maintained
- Soundproofing performance: Maintains D-35 to 45
Maintenance: Filter Replacement 1-2 Times Per Year, Internal Cleaning to Maintain Performance#
Regular maintenance maintains Lossnay performance.
Maintenance Items
- Filter replacement: 1-2 times per year
- Internal cleaning: Once every 6 months
- Operation check: Monthly
Effect
- Maintains ventilation performance
- Prevents sound leakage
- Extends lifespan
Points to Note During DIY Installation#
Let’s explain points to note when installing Lossnay DIY.
“Soundproof Sleeve” Essential for Wall Penetration (Straight Holes Are NG)#
Soundproof sleeve is essential for wall penetration.
Soundproof Sleeve Role
- Completely seals wall hole
- Prevents sound leakage
- Maintains airtightness
Installation Method
- Make hole in wall
- Install soundproof sleeve
- Connect Lossnay
Notes
- Straight holes are NG (cause sound leakage)
- Soundproof sleeve is essential
- Completely seal gaps
Residential Lossnay Wall-Mounted Type Is for Individual DIY (Single-Phase 100V Compatible)#
Residential Lossnay Wall-Mounted Type (1-pipe installation type) is designed for individual DIY.
Features
- Single-phase 100V compatible
- Relatively easy installation
- Reasonable price (about ¥15,000)
Recommended Uses
- Individual soundproof rooms
- DIY soundproof rooms
- Small studios
Cost Breakdown#
Breakdown of costs for Lossnay introduction.
| Item | Cost Guide |
|---|---|
| Unit (Wall-Mounted Type) | About ¥15,000 |
| Unit (Ceiling-Embedded Type) | ¥30,000-40,000 |
| Installation (Power + Wall Penetration) | About ¥20,000-50,000 |
| Soundproofing Materials and Sleeve | About ¥5,000 |
Total Guide (Individual Soundproof Room Use)
- Wall-mounted type + DIY installation: About ¥30,000-40,000
- Wall-mounted type + contractor installation: About ¥40,000-70,000
- Ceiling-embedded type + DIY installation: About ¥50,000-70,000
- Ceiling-embedded type + contractor installation: About ¥60,000-100,000
Note: Above are market prices for residential Lossnay (single-room use). Commercial and high-airflow models are in the hundreds of thousands to ¥1,000,000 scale.
Purchase Lossnay Ventilation and Air Purification System on Amazon
Comparison with Other Products (Reference)#
Let’s compare Lossnay with other products.
Ventilation Fan Product Comparison Table#
| Product | Structure | Noise Value | Heat Exchange | Soundproofing | Price Range (Individual Use) |
|---|---|---|---|---|---|
| Mitsubishi Lossnay | Double structure + heat exchange | 25-35dB | ◎ | ◎ | About ¥15,000-40,000 |
| Panasonic FY Series | Straight exhaust type | 35-40dB | △ | ○ | About ¥40,000-70,000 |
| Toshiba Smart Eco Ventilation | Cross ventilation type | 30-40dB | ○ | ○ | About ¥60,000-80,000 |
Mitsubishi Lossnay#
Features
- Double structure + heat exchange
- Noise value: 25-35dB
- Heat exchange: ◎
- Soundproofing: ◎
Benefits
- High soundproofing performance
- Energy-saving with heat exchange function
- Low noise
Disadvantages
- Slightly higher price
- Installation required
Panasonic FY Series#
Features
- Straight exhaust type
- Noise value: 35-40dB
- Heat exchange: △
- Soundproofing: ○
Benefits
- Reasonable price
- Easy installation
Disadvantages
- Slightly lower soundproofing performance
- Sound leakage risk
Toshiba Smart Eco Ventilation#
Features
- Cross ventilation type
- Noise value: 30-40dB
- Heat exchange: ○
- Soundproofing: ○
Benefits
- Has heat exchange function
- Reasonable price
Disadvantages
- Slightly lower soundproofing performance
- Inferior performance to Lossnay
Summary | New Standard of “Ventilation That Maintains Quietness”#
Lossnay is a representative device that changes air flow in soundproof rooms.
Lossnay Is a Representative Device That Changes Air Flow in Soundproof Rooms#
Let’s summarize Lossnay’s features.
Main Features
- Heat exchange ventilation: Ventilates without losing heat
- Low-noise structure: 25-35dB
- Soundproof design: Minimizes sound leakage
Reasons for Selection
- Can ventilate while maintaining soundproofing performance
- Temperature and humidity stability
- Energy-saving effect
Feature: “Heat Exchange + Soundproof Structure” That Suppresses Noise and Maintains Temperature and Air#
Lossnay’s greatest feature is heat exchange + soundproof structure.
Heat Exchange Function
- Transfers exhaust heat to supply air
- Heat recovery rate: 70-80%
- Energy-saving effect: 20-30%
Soundproof Structure
- Internal ducts with bends
- Sound-absorbing material filling
- Sound leakage attenuated by −10dB or more
Compatible with Both DIY Soundproof Rooms and Unit Soundproof Rooms#
Lossnay is compatible with both DIY soundproof rooms and unit soundproof rooms.
DIY Soundproof Rooms
- Residential Lossnay wall-mounted type is optimal
- DIY installation also possible
- Cost: About ¥30,000-40,000 (unit ¥15,000 + installation cost)
Unit Soundproof Rooms
- Residential Lossnay (ceiling-embedded type) or commercial
- Adopted as manufacturer option
- Cost: About ¥50,000-100,000 (residential) or hundreds of thousands scale (commercial)
Related Article Links#
- → Basic Knowledge: “Soundproof Room Ventilation and Air Conditioning | Design and Practical Guide to Prevent Sound Leakage”
- → Practical Article: “Soundproof Room Selection Checklist | By Purpose, Failure Prevention”
- → Product Information: “Mitsubishi Electric Lossnay Official Website”
Reference Information
- → Individual Review: “Individual Review and Practical Examples of Lossnay Introduction”
- → Installation Video: “Lossnay Installation Method Video”
This article is based on the latest information as of 2025. Product specifications and prices may change, so please check with Mitsubishi Electric and professionals for the latest information when actually purchasing or installing.