Control of Airborne Particles: Filtration

Stephens, Brent; Maynard, Andrew; Hopke, Philip K.

doi:10.1007/978-981-10-5155-5_55-1

Cited by 1 publication

(4 citation statements)

References 26 publications

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“…Its effectiveness depends on factors such as the fibers' size, the filter's density, or the material used. According to the results of different studies, it was possible to define four types of filter collection that catch the particles by diffusion, interception, inertial impact, and electrostatic attraction [598].…”

Section: Eye Protectionmentioning

confidence: 99%

“…At interception, the radius of the particle moving along the line of the air stream is greater than the distance from the airline to the surface, which causes the particle to meet the fiber surface. When impact by inertia occurs, the air current curves around a fiber and the inertia of the particles make them continue to move straight so that they collide with the thread and adhere by an interchange of molecular forces [598].…”

Section: Eye Protectionmentioning

confidence: 99%

“…Therefore, it depends only on diffusion and inertia and not on the size of the holes in the filter. The fraction of particles retained in the filter determines its efficiency [598]. Nowadays, many studies promote the improvement of the air filter's quality [601][602][603].…”

Section: Eye Protectionmentioning

confidence: 99%

“…However, experimental results indicate that the fraction of retained particles in the filter determines its efficiency. Therefore, it depends only on diffusion and inertia and not on the size of the holes in the filter [598]. Nowadays, many studies promote the improvement of the air filter's quality [598,601].…”

Section: Eye Protectionmentioning

confidence: 99%

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Application of Inorganic Nanomaterials in Cultural Heritage Conservation, Risk of Toxicity, and Preventive Measures

2023

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Nanotechnology has allowed for significant progress in architectural, artistic, archaeological, or museum heritage conservation for repairing and preventing damages produced by deterioration agents (weathering, contaminants, or biological actions). This review analyzes the current treatments using nanomaterials, including consolidants, biocides, hydrophobic protectives, mechanical resistance improvers, flame-retardants, and multifunctional nanocomposites. Unfortunately, nanomaterials can affect human and animal health, altering the environment. Right now, it is a priority to stop to analyze its advantages and disadvantages. Therefore, the aims are to raise awareness about the nanotoxicity risks during handling and the subsequent environmental exposure to all those directly or indirectly involved in conservation processes. It reports the human–body interaction mechanisms and provides guidelines for preventing or controlling its toxicity, mentioning the current toxicity research of main compounds and emphasizing the need to provide more information about morphological, structural, and specific features that ultimately contribute to understanding their toxicity. It provides information about the current documents of international organizations (European Commission, NIOSH, OECD, Countries Normative) about worker protection, isolation, laboratory ventilation control, and debris management. Furthermore, it reports the qualitative risk assessment methods, management strategies, dose control, and focus/receptor relationship, besides the latest trends of using nanomaterials in masks and gas emissions control devices, discussing their risk of toxicity.

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Section: Eye Protectionmentioning

confidence: 99%

Section: Eye Protectionmentioning

confidence: 99%