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Exposure system

  • US 10,539,550 B2
  • Filed: 03/19/2015
  • Issued: 01/21/2020
  • Est. Priority Date: 09/25/2012
  • Status: Active Grant
First Claim
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1. A method of obtaining a controlled exposure of a model material to an aerosol comprising the steps of;

  • i. providing a container comprising the model material;

    ii. inserting an exposure cap into said container so as to obtain a substantially sealed environment during the exposure;

    iii. introducing a controlled aerosol flow to an upper part of the exposure cap and transporting the aerosol towards the surface of the model material with a flow rotating around a central axis of the exposure cap;

    iv. admitting the aerosol to contact the model material, while shielding the model material container from aerosol contact; and

    v. transporting remaining aerosol away from the model material surface in an axially upwards directed separate flow.

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