Top Standing Soundproof WindowsIt serves as a secondary protection installed behind your existing windows. 
No need to remove your existing windows, eliminating the mess and inconvenience of replacing them.   
Quick installation, 30-40 minutes to install a window. Won't cause mess in the home environment.   
Slide-push switch, does not occupy indoor space.   
Embedded and surface-mounted installations, which can be installed on the inner side of any window (including windows with wide, narrow, or no sills).  

To cater to the special requirements of various clients, the Tongli Soundproof Windows come inSince 2002, we have launched: 
1. Standard Insulating Windows for Moderate Noise Environments 
2. Reinforced soundproof windows for severe noise environments 
3. Dual reinforced energy-saving and soundproof windows that reduce noise by 80% and save energy by 90% 
Welcome to select different types of soundproof windows according to your needs.  
Top Stand Energy-Saving and Soundproof WindowRelieve yourself from noise, listen to your heart! 
Nine Key Advantages: 
Noise isolation, effectively reducing noise by over 75%-90%, lowering it by 44-53 decibels, even exceeding 60 decibels. 
2 Energy-efficient and environmentally friendly, effectively saving 40-60% on electricity costs. 
3 Special materials that effectively block 99% of UV rays, reducing the risk of skin cancer, and effectively prevent furniture legs from discoloration and deterioration caused by UV rays. 
4 Windproof, waterproof, and dustproof, even if water seeps into your original windows, the top-grade energy-saving and sound-insulating windows' excellent airtightness is more than enough to give you peace of mind. 
Strong confidentiality, the superior energy-saving and noise-reducing windows from Dingli offer excellent secrecy to protect your personal and family privacy, preventing eavesdropping. 
6 Exclude the obstruction of visibility due to condensation fog and frost fog. 
7 Features flexible, sturdy and durable design, doubles the lifespan of the original window, safe and reliable, and facilitates quick ventilation and air exchange. 
8 Stylish and elegant, the design and color of the model largely overlap with the original window, without obstructing the view; easy to install and clean. 
9 Utilizes the latest American composite material construction technology for quick installation. 
After installing the top-mounted soundproof windows, your existing indoor noise levels will meet or exceed the national quiet environment standards—the Class 0 standard! 
4 Standard Categories: [Daytime 70 decibels, Nighttime 55 decibels] -- Along both sides of urban road main arteries, the two sides of the main inland waterways crossing the city, and the main railway lines 
Areas on both sides of the line  
3 Standard Categories: [Daytime 65 decibels, Nighttime 55 decibels] -- Industrial Areas 
2 Standard Types: [Daytime: 60 dB, Nighttime: 50 dB] -- Industrial, Commercial, Residential Mixed Zones 
1st Class Standard: [Daytime 55 decibels, Nighttime 45 decibels] -- Residential and educational institutions-oriented areas 
0 Class Standard: [Daytime 50 decibels, Nighttime 40 decibels] -- areas requiring special quietness such as sanatoriums, upscale villa districts, and luxury hotel zones 
Top Standing Soundproof Window Standard:[Daytime ≤ 45 dB, Nighttime ≤ 40 dB] 
Top Stand Energy-Saving Soundproof Windows let you escape the noise and listen to your heart!