MIRA Safety  |  SKU: MIRA-MIRAVPU

MIRA Safety - VPU-1 Respirator Voice Projection Unit

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Description

The MIRA Safety VPU-1 Respirator Voice Projection Unit amplifies and projects your voice while wearing a respirator. It’s an ideal solution for professionals who need to be heard loud and clear, but who also need to wear a PPE mask on duty. Working with your existing gas mask and gas mask microphone, our VPU features a rechargeable battery and is optimized to withstand exposure to extreme temperatures, vibration, water, salt fog, and dust.


Key Features of the MIRA Safety VPU-1 Respirator Voice Projection Unit:

  • Included rechargeable Lithium-Ion battery
  • IP67 certified (IEC standard 60529, submersible for up to a half an hour)
  • Simple, easy-to-use interface with just three buttons
  • Delivers maximum sound pressure level of 83 dBSPL @ 1 m
  • Connects directly to MIRA Safety Gas Mask Microphone that can be mounted on your respirator’s exhalation valve
  • Robust MOLLE clip allows for easy mounting and handling
  • Volume range +24 dB to -80 dB
  • Integrated battery allows for up to 6 hours of continuous use with 2 hours of charging
  • Designed in accordance with ČSN EN 140
  • Approved according to PPE directive 89/686/EEC and EMC directive 89/336/EEC


Technical Specification:


The MIRA Safety VPU-1 dramatically increases your ability to communicate while wearing a gas mask or half-face respirator.


This is a critical advantage for riot police, SWAT teams, military operators, and industry professionals who regularly wear CBRN gear. But it’s also a major asset for anyone who might have to communicate with a small group on the move without compromising their PPE.


Without a VPU, your ability to communicate can be limited by your gas mask’s speech diaphragm. A gas mask microphone helps solve that problem, but it also means that everyone in your party needs a radio (and to know how to operate it) in order to communicate.


With a VPU, you can effectively communicate over a much larger area, even in distressing or distracting situations.


The MIRA Safety VPU-1 integrates seamlessly into your existing gear, including our Gas Mask Microphone and any compatible gas mask or respirator. It’s IP67-certified with rugged construction and a runtime of up to 6 hours.


Battery & Charging Data: 


Battery Specification: 3.7 V / 1200 mAh, 4.44 Wh
Battery Charging Input: (designed for standard USB Charger)
Operating Time: (for maximum audio output level and continuous voice input)
Standard Charging Time (IIN up to 1.8 A): (from 0 % to 100 % battery capacity, depending on the charging current)
500 Times


Audio & Acoustic Data: 


150 Ω ± 10 % (300 ÷ 3,400) Hz
3 W
Maximum Sound Pressure Level (at usual voice level): (the audio output power remains at its set level, it does not decrease with decreasing battery life)

Environment & Other Data: 


Black (RAL 9005) 150 g ± 10 %
Refer to Figure 2 OLLE Clip
-20°C to 60°C (-4°F to 140°F) 0°C to 45°C (32°F to 113°F)
-20°C to 45°C (-4°F to 113°F) Approved according to PPE directive 89/686/EEC and EMC directive 89/336/EEC
Designed in accordance with ČSN EN 140 IP67
Min. Level V2 1,000 Hours



Use:


The unit features a rugged MOLLE clip that can be attached to a plate carrier, belt, or other MOLLE webbing (including our MOLLE PAPR Pouch). Before mounting the VPU, perform a battery test and plug in the two-pronged cable from your gas mask microphone. Switch the unit on, select your desired volume, and mount the microphone. Note that acoustic feedback may occur if the VPU is placed too close to your gas mask microphone. To eliminate feedback, either reduce the volume or increase the distance between the VPU and the microphone. 


Storage:


Store your MIRA Safety VPU-1 Respirator Voice Projection Unit in a cool, dry place away from direct sunlight. Ideal temperature for storage is -20 to +45°C (-4°F to 113°F). Lithium Ion batteries typically hold a charge for up to 12 months in storage. Periodic battery testing is necessary every 6 months to maintain a full charge. 

Return Policy:

For MIRA Safety products, we adhere to the MIRA Safety return policy, prioritizing the safety and wellbeing of our customers above all else. Given the critical nature of the products we offer, and to ensure their integrity, we do not accept returns once items have shipped from our warehouse. This policy safeguards our customers, ensuring the PPE they receive is uncompromised and untampered.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • JCB
  • Mastercard
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Frequently Asked Questions

How does the MIRA Safety VPU-1 enhance communication while wearing a gas mask?

The MIRA Safety VPU-1 amplifies and projects your voice, making it easier to communicate while wearing a gas mask. Traditional gas masks can muffle speech, making it difficult for others to understand you, especially in noisy environments. The VPU-1 connects to your gas mask's microphone and projects your voice over a larger area, ensuring clarity and volume are maintained. This is particularly beneficial for professionals in high-stress environments such as riot police or military operations where clear communication is critical.

What are the environmental conditions the MIRA Safety VPU-1 can withstand?

The MIRA Safety VPU-1 is designed to operate in extreme conditions, including exposure to water, dust, and temperature variations. It is IP67 certified, meaning it is dust-tight and can be submerged in water for up to 30 minutes without damage. The unit can function in temperatures ranging from -20°C to 60°C (-4°F to 140°F), making it suitable for a wide range of environments, from arctic conditions to desert heat.

How does the battery life of the MIRA Safety VPU-1 support extended operations?

The MIRA Safety VPU-1 features a rechargeable lithium-ion battery that provides up to 6 hours of continuous use. The battery can be fully recharged in approximately 2 hours using a standard USB charger. This allows users to quickly recharge the unit during breaks or downtime, ensuring it is ready for extended operations. Regular battery testing and maintenance are recommended to ensure optimal performance, especially if the unit is stored for long periods.

What are the compatibility requirements for using the MIRA Safety VPU-1 with different gas masks?

The MIRA Safety VPU-1 is designed to integrate seamlessly with most gas masks that have a compatible microphone setup. It connects directly to the MIRA Safety Gas Mask Microphone, which can be mounted on the respirator's exhalation valve. This ensures that the voice projection unit can be used with a variety of masks, enhancing communication capabilities across different PPE setups.

How does the MIRA Safety VPU-1 prevent feedback when used with a gas mask microphone?

To prevent acoustic feedback, the MIRA Safety VPU-1 should be placed at an appropriate distance from the gas mask microphone. Feedback can occur if the VPU is too close to the microphone. Adjusting the volume or increasing the distance between the microphone and the VPU can mitigate this issue. Proper placement and volume settings are crucial for maintaining clear and effective communication.

What maintenance is required for the MIRA Safety VPU-1 to ensure long-term reliability?

Regular maintenance of the MIRA Safety VPU-1 includes periodic battery testing and storage in suitable conditions. The lithium-ion battery should be tested every 6 months to ensure it holds a charge. The unit should be stored in a cool, dry place, away from direct sunlight, with temperatures between -20°C and 45°C (-4°F to 113°F). Proper maintenance will extend the lifespan of the VPU and ensure it is ready for use when needed.

Can the MIRA Safety VPU-1 be used in conjunction with other communication devices?

Yes, the MIRA Safety VPU-1 can be used alongside other communication devices to enhance operational efficiency. While the VPU amplifies voice for local communication, it can complement radio systems for broader communication. This dual approach ensures that team members can communicate effectively both in close proximity and over long distances, which is crucial in tactical and emergency scenarios.

What are the key benefits of using the MIRA Safety VPU-1 in emergency preparedness?

The MIRA Safety VPU-1 enhances communication in emergency situations, making it an essential tool for preparedness. By amplifying voice, it ensures that instructions and information can be clearly conveyed even in chaotic environments. This capability is vital for coordinating group movements, issuing commands, and ensuring safety during evacuations or tactical operations. For more on integrating communication tools into your preparedness plan, see our Communication Preparedness Guide.

How does the MIRA Safety VPU-1 integrate with existing PPE gear?

The MIRA Safety VPU-1 is designed to integrate seamlessly with existing PPE gear, especially gas masks. Its MOLLE clip allows for easy attachment to vests, belts, or other gear, ensuring that it remains secure and accessible during use. This integration capability ensures that users can maintain their standard PPE setup while enhancing their communication capabilities.

What are the limitations of using the MIRA Safety VPU-1 in extreme conditions?

While the MIRA Safety VPU-1 is robust and designed for extreme conditions, there are limitations to consider. The unit's battery life is limited to 6 hours of continuous use, which may require planning for recharging during extended operations. Additionally, while the VPU is water-resistant, it should not be submerged beyond its IP67 rating. Users should also be aware of potential feedback issues and adjust placement and volume accordingly.