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Compared to kn95 masks, are 3 layer masks much more cost effective? 

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Best insight from top research papers

3-layer masks are considered to be a cost-effective alternative to KN95 masks . In terms of droplet filtration efficiency and breathability, the combination of polypropylene-HEPA-polypropylene materials in 3-layer masks has been found to be the best alternative to N95 masks . These masks have a much lesser pressure drop compared to N95 masks, making them more comfortable to wear . Additionally, homemade masks using hydrophobic polypropylene nonwoven layers and a hydrophilic cellulosic cloth have shown better performance in arresting the transmission of droplets compared to surgical masks . Therefore, 3-layer masks can provide effective protection against airborne droplets while being more cost-effective than KN95 masks .

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Papers (5)Insight
Proceedings Article•DOI
Cost-effective strategies for ASIC masks
Dipankar Pramanik, Henry Kamberian, Christopher J. Progler, Michael Sanie, David Pinto 
30 Jun 2003
17 Citations
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Open access•Journal Article•DOI
3D Printed frames to enable reuse and improve the fit of N95 and KN95 respirators
Malia McAvoy, Ai-Tram N. Bui, Christopher Hansen, Deborah Plana, Deborah Plana, Jordan T. Said, Zizi Yu, Helen Yang, Jacob Freake, Christopher Van, David Krikorian, Avilash Cramer, Avilash Cramer, Leanne Smith, Liwei Jiang, Liwei Jiang, Karen J. Lee, Sara J. Li, Brandon Beller, Brandon Beller, Kimberley Huggins, Michael P. Short, Michael P. Short, Sherry H. Yu, Sherry H. Yu, Arash Mostaghimi, Arash Mostaghimi, Peter K. Sorger, Nicole R. LeBoeuf 
07 Jun 2021
12 Citations
The provided paper does not provide information about the cost-effectiveness of 3 layer masks compared to KN95 masks.
Journal Article•DOI
Multilayer and multiproduct masks: cost reduction methodology
Artur Balasinski
06 Feb 2006-IEEE Transactions on Semiconductor Manufacturing
10 Citations
The provided paper does not provide any information about the cost effectiveness of 3 layer masks compared to KN95 masks. The paper focuses on the cost reduction methodology for multilayer and multiproduct masks in the integrated circuit design industry.
Open access•Journal Article•DOI
Leveraging Wettability Engineering to Develop Three-Layer DIY Face Masks From Low-Cost Materials
Sourav Sarkar, Achintya Mukhopadhyay, Swarnendu Sen, Safwan Mondal, Arnav Banerjee, Pranibesh Mandal, Ratna Ghosh, Constantine M. Megaridis, Ranjan Ganguly, Ranjan Ganguly 
01 Jun 2020
14 Citations
The provided paper does not mention the cost effectiveness of 3-layer masks compared to KN95 masks.
Open access•Journal Article•DOI
Effectiveness of different facemask materials to combat transmission of airborne diseases
M Prudhvi Krishna, Simeon A. Babalola, Simeon A. Babalola, Samik Dutta, Samik Dutta, Shitanshu Shekhar Chakraborty, Shitanshu Shekhar Chakraborty, Murugan Thangadurai, Murugan Thangadurai, Himadri Roy, Nilrudra Mandal, Nilrudra Mandal, Harish Hirani, Harish Hirani, Poulomi Roy, Poulomi Roy 
01 Jan 2021-Sadhana-academy Proceedings in Engineering Sciences
2 Citations
The paper does not mention the cost-effectiveness of 3-layer masks compared to KN95 masks.

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