Air purifier
Both the reading and the listening discuss about types of air purifiers which are the devices used to purify air and prevent air pollution. The former argues that the different types of air purifiers work effectively, however the later contends that each air purifiers has their drawbacks.
First of all, the passage asserts that HEPA filters effectively purify the allergens like dust and pollens without any secondary pollution. In contrast, the lecture refutes by proposing that HEPA can't prevent very small allergen particles less than the size of 0.3 mm such as viruses, micro-organisms. This enable the growth of the harmful micro-organisms in air leading to health problems in human.
Second of all, the reading text claims that ozone generating air purifiers are affective in removing unpleasant smell and airborne chemicals and further it produces pleasant smell. On the other hand, the listening contends that such purifiers have ozone that is dangerous to our health as it adversely react with our eyes and longs. Exposure to ozone may lead to long term health health issues in human.
Finally, the writer of the text mentions that UV air purifiers are helpful to remove bacterial pollution in the air. However, the professor in the listening rebuts that UV purifiers do not effectively clear air. According to him, the UV purifiers can not purify the cigarette smokes and other various gases, which we need most to remove in common.
In conclusion, both the passage and listening discuss over three types of air purifier, however they contradict with each other on their views.
| Post date | Users | Rates | Link to Content |
|---|---|---|---|
| 2021-04-06 | Safa Arshad | 80 | view |
| 2021-01-25 | Safa Arshad | 76 | view |
| 2021-01-11 | talelaldabous | 76 | view |
| 2021-01-02 | bhimsen | 76 | view |
| 2020-12-19 | arun-kum6 | 80 | view |
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Grammar and spelling errors:
Line 3, column 197, Rule ID: CANT[1]
Message: Did you mean 'can't' or 'cannot'?
Suggestion: can't; cannot
... lecture refutes by proposing that HEPA cant prevent very small allergen particles l...
^^^^
Line 5, column 374, Rule ID: ENGLISH_WORD_REPEAT_RULE
Message: Possible typo: you repeated a word
Suggestion: health
...Exposure to ozone may lead to long term health health issues in human. Finally, the writer...
^^^^^^^^^^^^^
Transition Words or Phrases used:
but, finally, first, however, if, may, second, so, in conclusion, in contrast, such as, first of all, on the other hand
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 4.0 10.4613686534 38% => More to be verbs wanted.
Auxiliary verbs: 3.0 5.04856512141 59% => OK
Conjunction : 8.0 7.30242825607 110% => OK
Relative clauses : 11.0 12.0772626932 91% => OK
Pronoun: 19.0 22.412803532 85% => OK
Preposition: 34.0 30.3222958057 112% => OK
Nominalization: 3.0 5.01324503311 60% => More nominalizations (nouns with a suffix like: tion ment ence ance) wanted.
Performance on vocabulary words:
No of characters: 1343.0 1373.03311258 98% => OK
No of words: 259.0 270.72406181 96% => OK
Chars per words: 5.18532818533 5.08290768461 102% => OK
Fourth root words length: 4.01166760082 4.04702891845 99% => OK
Word Length SD: 2.64359525583 2.5805825403 102% => OK
Unique words: 142.0 145.348785872 98% => OK
Unique words percentage: 0.548262548263 0.540411800872 101% => OK
syllable_count: 403.2 419.366225166 96% => OK
avg_syllables_per_word: 1.6 1.55342163355 103% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 1.0 3.25607064018 31% => OK
Article: 8.0 8.23620309051 97% => OK
Subordination: 0.0 1.25165562914 0% => More adverbial clause wanted.
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 4.0 2.5761589404 155% => OK
Performance on sentences:
How many sentences: 12.0 13.0662251656 92% => OK
Sentence length: 21.0 21.2450331126 99% => OK
Sentence length SD: 29.9773062314 49.2860985944 61% => OK
Chars per sentence: 111.916666667 110.228320801 102% => OK
Words per sentence: 21.5833333333 21.698381199 99% => OK
Discourse Markers: 9.91666666667 7.06452816374 140% => OK
Paragraphs: 5.0 4.09492273731 122% => OK
Language errors: 2.0 4.19205298013 48% => OK
Sentences with positive sentiment : 5.0 4.33554083885 115% => OK
Sentences with negative sentiment : 5.0 4.45695364238 112% => OK
Sentences with neutral sentiment: 2.0 4.27373068433 47% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.566675007798 0.272083759551 208% => OK
Sentence topic coherence: 0.227772926107 0.0996497079465 229% => Sentence topic similarity is high.
Sentence topic coherence SD: 0.190668334364 0.0662205650399 288% => The coherence between sentences is low.
Paragraph topic coherence: 0.317322276785 0.162205337803 196% => OK
Paragraph topic coherence SD: 0.222153916066 0.0443174109184 501% => More connections among paragraphs wanted.
Essay readability:
automated_readability_index: 13.8 13.3589403974 103% => OK
flesch_reading_ease: 50.16 53.8541721854 93% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 11.5 11.0289183223 104% => OK
coleman_liau_index: 12.82 12.2367328918 105% => OK
dale_chall_readability_score: 8.52 8.42419426049 101% => OK
difficult_words: 63.0 63.6247240618 99% => OK
linsear_write_formula: 11.0 10.7273730684 103% => OK
gunning_fog: 10.4 10.498013245 99% => OK
text_standard: 11.0 11.2008830022 98% => OK
What are above readability scores?
---------------------
Rates: 76.6666666667 out of 100
Scores by essay e-grader: 23.0 Out of 30
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Note: the e-grader does NOT examine the meaning of words and ideas. VIP users will receive further evaluations by advanced module of e-grader and human graders.